Cybersecurity News and Vulnerability Aggregator

Cybersecurity news aggregator

Top Cybersecurity Stories Today

The Hacker News 3h ago

Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME). The vulnerability, tracked as CVE-2026-20230 (CVSS score: 8.6), is a case of improper input validation for specific HTTP requests that could allow an unauthenticated, remote

The Hacker News 16h ago

A Russian-speaking initial access broker (IAB) driven by financial gain is assessed to be behind a large-scale credential-harvesting operation known as FortiBleed that has targeted over 430,000 FortiGate firewalls globally. The campaign, active since February 2026, involves collecting credential lists, searching for exposed services, brute-forcing accessible systems, and deploying bespoke

Latest

Wednesday, June 24
r/computerforensics 1h ago
CVE

I worked in forensics for many years and one of the most annoying things in MFT/Journal analysis, is that initial work of prepping the files until they are readable by humans (size, format, timeframe). I used to export to csv, open in emeditor, then carve out the time periods I did not care about, but that took time and was not reliable. Now, with the emergence of AI, I was finally able to create the app that does it. It basically allows you to select a timeframe, extensions you do or do not care about, folders you wish to exclude, and go on your merry way of exporting the valid but carved out MFT for use in other tools or a CSV for use in your favorite tools, too. As this could be a collaborative project... and I will NEVER sell it, it will remain free (and maybe even open source) - what else would you like to see in such an app? Mods, am I allowed to add a link to a free tool here? https://preview.redd.it/smc3u9vl679h1.png?width=2470&format=png&auto=webp&s=8435e8ed9428b9d46396d069816eefe7fe631af1 I am almost certain there is no free or paid software out there that allows this kind of laser-focused carving of MFT files for speed of analysis. If the mods allow it, I'll post a link to the download. It's Freeware.

The Hacker News 1h ago

The U.S. Department of Justice (DoJ) on Tuesday announced the seizure of a cloud computing account put to use by subsidiaries of Cambodia-based corporate conglomerate HuiOne Group, as the Treasury unveiled fresh sanctions against nine individuals and 26 entities linked to Prince Group. "These subsidiaries are alleged to have assisted individuals and organizations in transferring proceeds of

r/cybersecurity 1h ago

Incident Analysis · June 2026 An Indonesian gambling-spam campaign called LEMON212 planted doorway pages across multiple unrelated customer sites on our server — not by breaching them individually, but by taking over a single reseller account and walking its customer list. By Tremhost Infrastructure Security  ·  Earlier this month we discovered a coordinated parasite-SEO attack on one of our managed cPanel/WHM servers. Dozens of customer websites — a hospital here, a school there, completely unrelated businesses — had been silently filled with Indonesian online-gambling content. The attacker wasn’t targeting any of those businesses individually. They had taken over the account of a reseller who managed all of those sites, and used that single login to walk straight into every site the reseller owned. We’re publishing what we found because the propagation mechanism is underappreciated, the detection lessons are non-obvious, and the mitigations are straightforward once you understand the attack surface. We have published the full report [here](https://tremhost.com/how-one-compromised-reseller-account-let-an-attacker-hit-dozens-of-websites-at-once/). Or full link: [https://tremhost.com/how-one-compromised-reseller-account-let-an-attacker-hit-dozens-of-websites-at-once/](https://tremhost.com/how-one-compromised-reseller-account-let-an-attacker-hit-dozens-of-websites-at-once/)

The Hacker News 3h ago

Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME). The vulnerability, tracked as CVE-2026-20230 (CVSS score: 8.6), is a case of improper input validation for specific HTTP requests that could allow an unauthenticated, remote

r/cybersecurity 4h ago

Hi everyone, I'm open-sourcing a project I've been building called **darkVault**. darkVault is an Android application that uses a zero-knowledge architecture and client-side encryption to transform Google Drive into an encrypted vault where users retain control of their encryption keys. Project Website: [https://scap3sh4rk.github.io/darkVault/](https://scap3sh4rk.github.io/darkVault/) GitHub: [https://github.com/scap3sh4rk/darkVault](https://github.com/scap3sh4rk/darkVault) Current features include: * AES-256-GCM encryption * Encrypted file and folder management * Secure media previews * Android Keystore integration * Biometric authentication * Zero-knowledge design I am specifically looking for feedback from: * Application Security Researchers * Android Security Researchers * Mobile Pentesters * Cryptographers * Open Source Contributors The project includes a public [SECURITY.md](http://SECURITY.md) and responsible disclosure process. If you discover a legitimate security vulnerability and follow the disclosure process, reports may be eligible for GitHub Security Advisories and, where appropriate, CVE assignment processes subject to CNA requirements. My primary goal is to have the design, implementation, and threat model reviewed by people with stronger security expertise than myself. Security Policy: [https://github.com/scap3sh4rk/darkVault/blob/main/SECURITY.md](https://github.com/scap3sh4rk/darkVault/blob/main/SECURITY.md) Discussions: [https://github.com/scap3sh4rk/darkVault/discussions](https://github.com/scap3sh4rk/darkVault/discussions) I would appreciate any feedback on architecture, cryptography choices, Android security posture, threat modeling, or implementation flaws.

Troy Hunt 5h ago

Presently sponsored by: Report URI: Guarding you from rogue JavaScript! Don’t get pwned; get real-time alerts & prevent breaches #SecureYourSite I know enough about home cinema audiovisual to know there's a lot I don't know. It's conscious incompetence, if you like, which is different to the unconscious incompetence most people have on the topic. That's not to sound derogatory (it's spelled out that way in the competence model ), rather it recognises that this is a super specialised area and as soon as you start scratching the surface, things get very complex and very expensive really fast. But it's also exciting, and what we've got in the pipeline for our house expansion will blow you away. More to come soon 

r/cybersecurity 5h ago

[https://github.com/primordialomegazero/BeyondYourComprehensionFHE](https://github.com/primordialomegazero/BeyondYourComprehensionFHE)

Tuesday, June 23
The Hacker News 16h ago

A Russian-speaking initial access broker (IAB) driven by financial gain is assessed to be behind a large-scale credential-harvesting operation known as FortiBleed that has targeted over 430,000 FortiGate firewalls globally. The campaign, active since February 2026, involves collecting credential lists, searching for exposed services, brute-forcing accessible systems, and deploying bespoke

Krebs on Security 18h ago
CVE

Two men pleaded guilty in the United Kingdom this week to criminal charges stemming from an August 2024 cyberattack that crippled Transport for London , the entity responsible for the public transport network in the Greater London area. The duo were key members of a prolific cybercrime group known as Scattered Spider , and their guilty pleas came on the first day of what was expected to be a six-week trial. Owen Flowers (left) 18, and Thalha Jubair, 20. Image: UK National Crime Agency (NCA). Thalha Jubair , 20, of East London and 18-year-old Owen Flowers of Walsall admitted conspiring to commit unauthorized acts against Transport for London computer systems and causing risk of serious damage to human welfare. According to a report from the BBC, Flowers alone admitted to being part of a conspiracy to hack into U.S. based healthcare providers SSM Health Care Corporation and Sutter Health in September 2024. Jubair is also wanted by U.S. law enforcement agencies. In September 2025, prosecutors in New Jersey unsealed

The Hacker News 19h ago

Security firm AIR built a fake AI agent skill, pushed it through a popular skill marketplace and an Instagram ad, and says it reached roughly 26,000 agents, including some on corporate accounts. Every skill security scanner the firm tested it against marked it safe. The payload was harmless by design: it collected the user's email address and did nothing else. The point was to show

The Hacker News 19h ago

President Trump signed an executive order on June 22 setting hard deadlines for federal agencies to move high-value assets and high-impact systems to post-quantum cryptography. Key establishment must move by December 31, 2030; digital signatures by December 31, 2031. EO 14409 leaves national security systems on a separate track. The deadlines matter because of a threat that does not

The Hacker News 20h ago

GitHub is moving to strengthen software supply chain security by updating "actions/checkout" to block pwn request attacks that exploit the risky use of the "pull_request_target workflow" trigger to run malicious code with the workflow's full privileges. Effective June 18, 2026, the latest version of "actions/checkout," the official GitHub action for checking out a repository into the

The Hacker News 23h ago

Every weapon begins as an extension of the hand that holds it. The spear lengthened the reach of the arm. The bow sent the point flying without the throw. The rifle placed a man's death a quarter mile beyond his sight, and the aircraft carried that death across oceans. At each turn, the distance between the warrior and the wound grew wider, and yet one thing never moved: a human chose the target

r/netsec Jun 23

Kind of crazy to look at the graph in this blog. CVE drops on 04/29, they develop a patch on 4/30, and deploy it across all of their servers on 05/01. Obviously they have the engineers to write BPF-LSM patches, but I think it points to a future where they can (almost) keep up with vulnerability disclosures.

r/netsec Jun 23
CVE

A vulnerability in Cisco Unified Communications Manager allows unauthenticated attackers to arbitrarily write files in the server which could be used to run arbitrary commands or code on the server.

The Hacker News Jun 23

Cybersecurity researchers have discovered a set of malicious npm packages that are designed to deliver a Windows-based remote access trojan (RAT). The list of identified packages, is below - aes-decode-runner-pro (145 downloads) postcss-minify-selector (256 downloads) postcss-minify-selector-parser (615 downloads) All the packages were published over the past month by an npm user named

r/computerforensics Jun 23

Would appreciate any feedback. From the project page: “Recursive-IR is a single-binary orchestration that transforms an OpenSearch stack into a fully capable and customisable DFIR log analytics platform. Incident responders and digital forensics investigators can examine events arranged in a "super timeline" enabling correlation between different source artefacts to better understand the threat actor's full chain of attack. It enables collaborative case-centric investigations with persistent enrichments such as tags, comments, and analyst context, while fully leveraging the strengths of OpenSearch and native OpenSearch Dashboards — scalable observability, visualisation, and Security Analytics for alerting and correlation across ingested forensics artefacts. The platform offers full control over data being analysed with facilities to resolve data type mapping conflicts, mutating fields (e.g., renaming, copying, or stringifying), normalizing log sources with different timezones, and even selecting fields to be used as @timestamp. Artefacts can be reloaded or re-parsed and reloaded easily enabling users to perform modifications such as adding enrichments or mutating fields if needed, a feature which isn't commonly available in traditional SIEMs.” https://github.com/improvisec/recursive-ir

The Hacker News Jun 23

Direct messages sent via WhatsApp are being used to distribute malicious Visual Basic Script (VBScript) files that lead to the installation of legitimate Remote Monitoring and Management (RMM) software. Per findings from Kaspersky, the active campaign is targeting users of WhatsApp Desktop and WhatsApp Web across Malaysia, Brazil, India, Mexico, Singapore, the U.K., Spain, Taiwan, Australia,

The Hacker News Jun 23

OpenAI on Monday said it's releasing an improved version of its GPT‑5.5‑Cyber model to trusted defenders as part of the Daybreak initiative the artificial intelligence (AI) company announced last month. Calling GPT‑5.5‑Cyber its "strongest model yet for finding and helping patch software vulnerabilities," OpenAI said the model can "sustain deeper analysis across large codebases" to

Monday, June 22
r/blueteamsec Jun 22
CVE

I wrote down how I think about onboarding order. Basically I ranked sources by how much they actually help an investigation, not by what's easiest to ingest. For each one I went through what you need to collect, how painful the parsing is, what retention makes sense, and what you can realistically detect once it's in.

Bleeping Computer Jun 22

The JaredFromSubway Ethereum MEV (Maximal Extractable Value) bot suffered a $15 million loss after an attacker manipulated the opportunity-detection logic by creating fake cryptocurrency trading opportunities. [...]

Bleeping Computer Jun 22
CVE

A newly disclosed FFmpeg flaw dubbed 'PixelSmash' could be exploited for remote code execution on Jellyfin servers under certain conditions, and can also trigger a denial-of-service condition in applications like Kodi, Emby, Nextcloud, PhotoPrism, and OBS Studio. [...]

CERT/CC Jun 22

Overview Two vulnerabilities have been identified in FastStone Image Viewer 8.3 that may allow remote code execution or control-flow corruption when processing specially crafted image files. The affected components include the JPEG 2000 (JP2) parser and the PSD file parser. An attacker can exploit these vulnerabilities by causing the application to automatically or interactively process malicious image files. Description FastStone Image Viewer is a software tool for browsing, editing, and managing images, offering features like full‑screen viewing, batch processing, red‑eye removal, and a wide range of editing effects. It supports virtually all major image and RAW formats and includes conveniences like slideshows, comparison tools, scanner support, and screen capture. CVE-2026-30040 A critical heap-based buffer overflow vulnerability exists in FastStone Image Viewer, versions 8.3 and earlier. The issue is triggered during the parsing of JPEG 2000 (JP2) files due to a malformed QCD (quantization default, 0xFF5C ) marker in the FSViewer.exe process. By exploiting this flaw, a remote attacker can overwrite the EIP (instruction pointer) and execute arbitrary code in the context of the current process via a crafted JP2 file. Notably, this issue does not require the victim to directly open the crafted JP2 file. When the application enumerates directories during automatic thumbnail generation, files within two directory levels are parsed by the JP2 decoder. If the malicious JP2 file is present within this enumeration range (for example in the user’s Downloads folder), the vulnerability is triggered automatically. CVE-2026-30041 An integer overflow vulnerability exists in the PSD parser of FastStone Image Viewe

Bleeping Computer Jun 22

A vulnerability chain dubbed AutoJack in Microsoft's AutoGen Studio interface for prototyping AI agents could let attackers manipulate an agent into executing arbitrary commands on its host system simply by visiting a malicious webpage. [...]

Trail of Bits Jun 22

What happens when you clear dozens of Trail of Bits engineers’ schedules, pair them with every open-source maintainer they can contact, and unleash the latest frontier models like GPT-5.5-Cyber on critical open-source targets? Thanks to our partnership with OpenAI and its Daybreak initiative, we can report that the impact is hundreds of discovered bugs, 64 pull requests, and 51 issues filed across 19 projects (with many more still undergoing coordinated disclosure). That was just the first week of Patch the Planet . Frontier models like GPT-5.5-Cyber are producing a firehose of security findings, and already-stretched maintainers must sift through all of it to separate real vulnerabilities from plausible-sounding false positives. Patch the Planet is different: with our experts orchestrating and triaging findings, we handle the work of fixing and hardening the code alongside the people who maintain it. The first week of Patch the Planet covered 19 projects across cryptography, networking, language infrastructure, and software supply chain. Among these 19 projects were cURL, NATS, pyca, Sigstore, aiohttp, the Go project, freenginx, Python and python.org, urllib3, PyPI, SimpleX, Valkey, and RustCrypto. Over 30 projects have joined the initiative so far, and we’re rapidly expanding it to include more; if you maintain an open-source project, apply to join !

The Hacker News Jun 22

A heap over-read in the Squid web proxy can leak another user's cleartext HTTP request, including any credentials or session tokens it carries, to anyone already allowed to send traffic through the same proxy. The bug traces to a 1997 FTP-parsing change and is still live in Squid's default configuration. Researchers at Calif.io disclosed it in June and named it Squidbleed (

CERT/CC Jun 22
CVE

Overview Microsoft Windows Recovery Environment (WinRE) provides a mechanism for recovering and repairing Windows systems using an alternate boot environment. Under certain platform implementations, access to WinRE may allow an attacker to bypass firmware security controls, including administrator-configured UEFI/BIOS passwords. An attacker with physical or administrative access to a device may be able to leverage WinRE-related boot mechanisms to circumvent firmware protections and gain unauthorized access to system resources. Description Microsoft Windows versions 10 and 11 include the WinRE capability, a recovery platform that supports features such as the F11 recovery menu and the Reset this PC functionalities. WinRE is commonly used for system recovery, troubleshooting, and remote support scenarios. When WinRE is invoked, the system reboots into a recovery environment that may use an alternate boot path from the standard operating system startup sequence. Depending on the platform and firmware implementation, the alternate boot path may not consistently enforce the same UEFI/BIOS security controls that are applied during a normal boot process. A security concern has been identified in certain WinRE implementations where administrative UEFI/BIOS passwords may not be enforced during specific recovery operations. This inconsistency in the boot execution path may allow an attacker with physical access to a device to bypass firmware-level protections. Such scenarios are commonly associated with "Evil Maid" attacks, in which an attacker gains temporary physical access to an unattended system and modifies its boot configuration or security settings. In UEFI-based systems, the UEFI boot manager sup

The Hacker News Jun 22

Cybersecurity researchers have disclosed details of four vulnerabilities in Dify, an open-source agentic workflow platform with more than 146,000 GitHub stars, that could allow attackers to stealthily read artificial intelligence (AI) conversions from other customers' applications without requiring authentication. The vulnerabilities have been collectively codenamed DifyTap by Zafran Security.

Heimdal Security Jun 22

In May 2026 an attacker compromised a UK medical practice endpoint without delivering a single malicious file. They used PowerShell and the .NET compiler built into Windows to build a Remcos remote access trojan on the machine itself, so signature antivirus had no known sample to match. The thing that caught it was DNS filtering, […] The post How attackers built a RAT on a Windows machine using its own .NET compiler appeared first on Heimdal Security Blog .

The Guardian Jun 22

Signal agencies in Australia, the US, the UK, New Zealand and Canada sound alarm after Trump blocks foreign nationals from Anthropic’s Fable AI model Powerful AI models capable of devastating new cyber attacks on governments and businesses are mere months away, intelligence agencies for the Five Eyes have warned in a rare joint statement, urging leaders to “act now”. The surprising public intervention by signals agencies for Australia, the US, the UK, New Zealand and Canada comes after the Trump administration earlier this month decided to block “foreign nationals” from using a much-hyped AI model built by tech company Anthropic, called Fable. Continue reading...

The Hacker News Jun 22

Google has set September 30, 2026, as the day it begins enforcing Android developer verification in the first four countries, and the major device-maker app stores are in from the start. On that date, certified Android phones in Brazil, Indonesia, Singapore, and Thailand will block normal installs of apps whose developers have not registered an identity with Google, whether the app

The Hacker News Jun 22
AI

Earlier this month, I spoke at the Gartner Security & Risk Management Summit about a blind spot most security programs are still not accounting for - how attackers are circumventing AI security programs by using legacy infrastructure to hijack AI agents. AI adoption is moving faster than security programs can account for. Roughly 71% of organizations are piloting AI agents across their

The Hacker News Jun 22

It’s Monday again. This week’s threat list looks painfully familiar: abused integrations, fake tools, poisoned websites, ransomware crews trying to shut down security tools, and mobile malware asking for way too much control. The annoying part is how little of this feels new. Weak credentials, sketchy downloads, browser extensions with too much access, and WordPress sites are used to push more

The Hacker News Jun 22

Canada's spy service got a judge's permission to reach into infected servers, home routers, and IoT gear sitting on Canadian soil and neutralize two foreign-run botnets. The Federal Court released a public version of the ruling on June 15. It is the first time the Canadian Security Intelligence Service has used its threat reduction warrant powers this way. The warrant let CSIS alter,

Heimdal Security Jun 22

At 06:34am on 2 June 2026, an attacker logged on to a customer’s network. In a single automated burst, they switched on remote desktop and created a rogue administrator account. And deleted the evidence behind them. The intrusion reached 34 endpoints and was over in under ten seconds. Heimdal Extended Threat Protection (XTP) and Ransomware […] The post Attacker enables RDP, creates admin, erases evidence in ten seconds appeared first on Heimdal Security Blog .

r/ReverseEngineering Jun 22

To reduce the amount of noise from questions, we have disabled self-posts in favor of a unified questions thread every week. Feel free to ask any question about reverse engineering here. If your question is about how to use a specific tool, or is specific to some particular target, you will have better luck on the [Reverse Engineering StackExchange](http://reverseengineering.stackexchange.com/). See also /r/AskReverseEngineering.

The Hacker News Jun 22

A new malware family is turning forgotten home routers into a distributed reconnaissance and proxy network, not the DDoS botnet these devices usually end up in. QiAnXin's XLab calls it AryStinger and counts at least 4,300 infected routers, a total it says is still rising. The distinction matters. AryStinger exists for the stage of an attack that comes before the break-in. Infected

The Hacker News Jun 22

A new report from INTERPOL has revealed a "dramatic increase" in cybercrime in Asia and the South Pacific, fueled by rapid digitalization, internet penetration, new technologies, organized criminal networks, and a disparity in cybersecurity maturity. According to INTERPOL's 2025/2026 Asia and South Pacific Cyberthreat Assessment Report, phishing has emerged as the most widespread and

Sunday, June 21
r/Malware Jun 21

[**clearmic.net**](http://clearmic.net) **is malware, do not download it** Someone sent me this site asking if it was legitimate. I ran the installer in a sandbox and it's a RAT. It looks like a mic clarity app but bundles a hidden second executable that runs in the background. Here's what it actually does: logs your keystrokes, captures your screen, hijacks your clipboard, records microphone audio, and sends everything out to a remote server encrypted. It also deletes Windows Shadow Copies which is standard ransomware behaviour to stop you recovering your files. It actively checks if it's running in a sandbox too, which is why I'm glad I tested it before running it on a real machine. Full sandbox analysis if you want to dig into it yourself: [https://tria.ge/260621-vsjxnaet4k/behavioral2](https://tria.ge/260621-vsjxnaet4k/behavioral2) If you already ran this, disconnect from the internet and run Malwarebytes immediately. Change your passwords from a different device, especially Discord, email, and anything with saved credentials in your browser. Spread this around so people don't get caught out.

Saturday, June 20
r/computerforensics Jun 20

An AI pair of eyes sitting over your shoulder, catching what you miss while you're deep in an investigation. Repo: [**https://github.com/hasamba/DFIR-Companion**](https://github.com/hasamba/DFIR-Companion) Landing page: [**https://hasamba.github.io/DFIR-Companion/**](https://hasamba.github.io/DFIR-Companion/) EDIT: Hands-on lab: [**https://killercoda.com/dfir-companion/scenario/killercoda**](https://killercoda.com/dfir-companion/scenario/killercoda) Honestly, it started out of frustration. I'm sitting on an investigation, open Velociraptor, spot an interesting lead, start digging into it, find another lead, and so on, and then suddenly I realize I completely forgot to go back to the other findings from the first artifact. The sheer amount of information you need to process during an investigation is simply more than one pair of eyes can handle, no matter how much coffee you've had. So I started building something to help myself and it ended up going somewhere I didn't expect. The original idea was a browser extension that takes screenshots every few seconds, so I could scroll back and see what I missed. Pretty dumb idea in hindsight, actually. But then the question came up: if I already have all those screenshots, why not let AI go through them while I work? And from there it exploded. Today it's a real-time dashboard that updates live as I investigate. It identifies findings, automatically builds an event timeline, extracts IOCs and enriches them from multiple sources, creating playbook that suggests what to check next, suggest hunt queries for velociraptor, run them and collect back the results, checks for data leaks, and answers the standard questions every investigation report needs: access vector, lateral movement, privilege escalation, etc. If a client confirms a finding-"that's legit, it's our weekly scan", one click and the entire analysis updates accordingly. The coolest part, to me, is that this started as a Velociraptor-specific solution but in practice became an AI layer on top of every tool I have open in the browser: SIEM, Security Onion, Splunk4DFIR, VolWeb, you name it. Even tools with no built-in AI suddenly get smarter, and all the data consolidates in one place instead of me jumping between ten tabs. Important to understand: this is NOT another detection layer. Your Sigma, YARA, and Suricata rules are already doing their job. This tool is the layer after detection-it takes all the verdicts from your tools, correlates them, and builds the "so what." The tool didn't stop at screenshots either. You can feed it almost any DFIR output and it will automatically detect the format and import it deterministically (no burning tokens on AI for that). Additional features: • Data correlation • Threat intel enrichment — with OPSEC in mind • AI input anonymization • Asset ↔ IoC graph • Targeted query generation • Export to multiple platforms • Free-form case Q&A against an LLM and much more... If you work in DFIR, Blue Team, or SOC — I'd love for you to try it out, open issues, suggest features, submit PRs, or just tell me what you think.

Friday, June 19
r/netsec Jun 19
CVE

A crafted MPLS packet can trigger an out-of-bounds read in mpls\_do\_error, leaking 4 bytes of adjacent kernel stack memory back in an ICMP/MPLS error response. It requires MPLS enabled, but the leak is remote and repeatable. Fixed in OpenBSD-current on 2026-06-18.

Praetorian Jun 19

In the previous post we walked through WasmForge, our Go-to-WebAssembly loader that takes existing signatured Go tools and ships them as opsec-safe binaries. This approach doesn’t just apply to Go, however, as there are many languages that can compile to WebAssembly. Another language of interest to us, especially regarding legacy tools which have been over-signatured, is C#. In short, we got several GhostPack tools working through WasmForge. Rubeus and Seatbelt both run as PE binaries that pass through the same outer host which we use for Sliver, with most of their commands functioning at full parity to the original C# code. The mechanism is .NET’s NativeAOT-WASI toolchain plus a non-trivial amount of bridge code that we wrote with heavy LLM assistance. The release of this post also heralds our open-sourcing of the entire toolchain. This is also the last post in this series, so we’ll talk about the open source release at the end. If you’d like to skip ahead and try out the tool, you can grab it from github.com/praetorian-inc/wasmforge . The Most Signatured Tools on the Internet If Go tools are signatured into oblivion, C# tools are signatured and salted . Every major red team C# tool released in the last decade has a YARA rule with the project name in its title, several rules covering specific function names, and a handful of b

Thursday, June 18
Synack Jun 18

The tech sector was the only industry in Synack's 2026 State of Vulnerabilities Report to get slower at remediating critical vulnerabilities—growing from 74 to 98 days while manufacturing, government, and financial services all improved. This post breaks down the technical and cultural forces driving that gap, and what it takes to close it. The post The Tech Sector’s Critical Vulnerability Paradox appeared first on Synack .

CERT/CC Jun 18

Overview Multiple vendor-signed UEFI applications are vulnerable to Secure Boot bypass via a "Bring Your Own Vulnerable Driver" (BYOVD)-style attack. If a target system trusts the affected vendor’s certificate, an attacker can exploit these applications to execute arbitrary code during the early pre-boot phase before the operating system initializes. To mitigate this risk, system administrators should apply updates to the UEFI Forbidden Signature Database (DBX) that revoke trust in the affected vendor-signed binaries, preventing these vulnerable applications from executing during the boot process. Description The Unified Extensible Firmware Interface ( UEFI ) standard defines the modern firmware architecture used to initialize hardware and transfer control to the operating system during system startup. On systems with Secure Boot enabled, UEFI applications and drivers must be cryptographically signed and verified before execution. Trust for these signatures is established through several firmware-managed databases, including the authorized signature database (DB), which commonly contains certificates from original equipment manufacturer (OEM) vendors, operating system authorities, and other supply-chain partners in the UEFI ecosystem. The UEFI shell is a command-line application that allows advanced users to interact directly with the UEFI environment to run diagnostics or special tasks prior to the operating system boot. Other UEFI applications, such as bootloaders, manage the operating system startup sequence or load specific drivers before the main OS initializes. Some of these applications possess functionalities that can manipulate system memory, modify sensitive NVRAM variables, or load raw drivers. If a vendor-signed application inadvertently exposes the

Krebs on Security Jun 18

For the past four years, a sprawling Android-based botnet called Popa has forced millions of consumer TV boxes to relay Internet traffic linked to advertising fraud, account takeovers, and mass data-scraping efforts. This week, researchers from multiple security firms concluded that the Popa botnet is linked to NetNut , a “residential proxy” provider operated by the publicly-traded Israeli firm Alarum Technologies Ltd [NASDAQ: ALAR]. Malicious streaming devices sold online that enroll the user’s home Internet address in a residential proxy service. Image: HUMAN Security. Popa is a massive botnet, but by all accounts it is unlike traditional botnets that enlist compromised systems in destructive activities, such as coordinating huge distributed denial-of-service attacks. Rather, Popa appears designed with a singular purpose: Implementing a persistent communications layer capable of registering a device, maintaining long-lived encrypted connections, and opening communication tunnels on demand. Experts say P

NVISO Labs Jun 18

Introduction Merely a few years ago, when asking about the state of quantum computing or the need for Post-Quantum Cryptography (PQC), the response would usually revolve around the ongoing PQC competition that NIST had brought to life in an attempt to identify algorithms for standardization. In 2022, Cloudflare started experimenting 1 with hybrid key agreement on its production edge, though most of the world outside a handful of research labs had barely registered that any of this mattered. The core argument of that work was that organizations n

Wednesday, June 17
CERT/CC Jun 17
CVE

Overview The SignalRGB kernel driver, SignalIo.sys , contains two vulnerabilities involving improper access control and unsafe memory handling. The device object is created with an overly permissive Discretionary Access Control List (DACL) that allows user-mode processes to access privileged hardware operations through input/output control (IOCTL) commands. Additionally, several IOCTL handlers are susceptible to NULL pointer dereference conditions, which further enables low-privilege users to trigger kernel crashes and cause Denial of Service (DoS). Version 1.3.7.0 of the SignalRGB driver remediates these vulnerabilities. Description SignalRGB is a Windows application used for RGB lighting control and hardware monitoring. Its kernel component, SignalIo.sys , provides the low-level interfaces required to access and interact with hardware resources. The SignalIo.sys driver exposes privileged functionality intended for administrative or security operations, but the device object is created without a restrictive security descriptor. Specifically, the driver does not apply security best practices by using either Security Descriptor Definition Language (SDDL) or the IoCreateDeviceSecure API, thereby allowing unprivileged user-mode processes to open handles to the device and issue privileged IOCTL requests. CVE-2026-8049 The \\.\SignalIo device object is created without an explicit SDDL security descriptor and without FILE_DEVICE_SECURE_OPEN . This results in overly permissive default access control, allowing any authenticated local user to obtain a handle to the

r/netsec Jun 17

I've been reversing the 2M+ user Volume Booster Chrome extension and found something interesting. Between v1.0.3 (2025-06-27) and v1.0.4 (2025-07-02), the extension added: "content_scripts": [{ "matches": ["<all_urls>"], "js": [ "vendor/GiveFreely-content.umd.js", "content-script.js" ] }] The previous version was essentially a small audio booster. The newer version introduces a Give Freely / Wildlink component that appears to support merchant detection, affiliate attribution, and donation campaigns. No new permissions were added, meaning existing users would have received the update automatically without a new Chrome permission approval prompt. I've also found the same Give Freely / Wildlink infrastructure in multiple unrelated extensions, which makes me think it's being distributed as a white-label monetization/fundraising SDK. I'm still investigating and considering whether this is worth adding to MalExt. At this point I don't have evidence of malware, credential theft, or anything overtly malicious just a significant expansion of functionality in a 2M-user extension. Curious what others think. Is this a transparency/privacy concern, or just a normal extension monetization model? Any opinions or prior research on Give Freely / Wildlink would be appreciated so i can added to [malext.io](http://malext.io)

Praetorian Jun 17

Overview Earlier this year, a team at Praetorian was building Constantine , our automated 0-day discovery engine. I wanted to find techniques worth folding into it, so on the side I started poking at the FreeBSD kernel with Claude Code, running on Opus 4.6, which was the latest Opus model at the time. A few days of work turned up real bugs and a weekend after that produced two working exploits capable of escaping from a FreeBSD jail. This article is part of a two-part series. In part one, I will be focusing on the methodology used to uncover the identified vulnerabilities and part two will focus on the methodology we leveraged to develop and exploit the vulnerabilities. It’s been several months since I disclosed roughly eight separate vulnerabilities to the FreeBSD security team. The reality is that this is a volunteer team and they are likely overwhelmed by the sheer number of vulnerabilities being identified within FreeBSD by various security researchers leveraging large language models. Because of this, we can really only publicly discuss a single vulnerability we reported CVE-2026-3038 , a fairly straight-

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