On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email
Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in t…
Windows Zero-Days Expose BitLocker Bypasses And CTFMON Privilege Escalation
An anonymous cybersecurity researcher who disclosed three Microsoft Defender vulnerabilities has returned with two more zero-days involving a…
New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption
Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local…
18-Year-Old NGINX Rewrite Module Flaw Enables Unauthenticated RCE
Cybersecurity researchers have disclosed multiple security vulnerabilities impacting NGINX Plus and NGINX Open, including a critical flaw that…
Microsoft's MDASH AI System Finds 16 Windows Flaws Fixed in Patch Tuesday
Microsoft has unveiled a new multi-model artificial intelligence (AI)-driven system called MDASH to facilitate vulnerability discovery and…
Azerbaijani Energy Firm Hit by Repeated Microsoft Exchange Exploitation
A threat actor with affiliations to China has been linked to a "multi-wave intrusion" targeting an unnamed Azerbaijani oil and gas company…
![[Webinar] How Modern Attack Paths Cross Code, Pipelines, and Cloud](https://x86.se/wp-content/uploads/2026/05/webinar-how-modern-attack-paths-cross-code-pipelines-and-cloud-400x225.png)
[Webinar] How Modern Attack Paths Cross Code, Pipelines, and Cloud
TL;DR: Stop chasing thousands of "toast" alerts. Join experts from Wiz to learn how hackers connect tiny flaws to build a "Lethal Chain" to…
Most Remediation Programs Never Confirm the Fix Actually Worked
Security teams have never had better visibility into their environments and never been worse at confirming what they fix stays fixed.…
Microsoft Patches 138 Vulnerabilities, Including DNS and Netlogon RCE Flaws
Microsoft on Tuesday released patches for 138 security vulnerabilities spanning its product portfolio, although none of them have been listed…
GemStuffer Abuses 150+ RubyGems to Exfiltrate Scraped U.K. Council Portal Data
Cybersecurity researchers are calling attention to a new campaign dubbed GemStuffer that has targeted the RubyGems repository with more than…
Android Adds Intrusion Logging for Sophisticated Spyware Forensics
Google on Tuesday unveiled a new opt-in Android feature called Intrusion Logging for storing forensic logs to better analyze sophisticated…
New Exim BDAT Vulnerability Exposes GnuTLS Builds to Potential Code Execution
Exim has released security updates to address a severe security issue affecting certain configurations that could enable memory corruption and…
RubyGems Suspends New Signups After Hundreds of Malicious Packages Are Uploaded
RubyGems, the standard package manager for the Ruby programming language, has temporarily paused account sign ups following what has been…
New TrickMo Variant Uses TON C2 and SOCKS5 to Create Android Network Pivots
Cybersecurity researchers have flagged a new version of the TrickMo Android banking trojan that uses The Open Network (TON) for…
Webinar: What the Riskiest SOC Alerts Go Unanswered – and How Radiant Security Can Help
Why do the Riskiest SOC Alerts Go Unanswered? Security operations teams are drowning in alerts. But the real problem isn't always alert…
Why Agentic AI Is Security's Next Blind Spot
Agentic AI is already running in production environments across many organizations today. It is executing tasks, consuming data, and taking…
Mini Shai-Hulud Worm Compromises TanStack, Mistral AI, Guardrails AI & More Packages
TeamPCP, the threat actor behind the recent supply chain attack spree, has been linked to the compromise of the npm and PyPI packages…
Instructure Reaches Ransom Agreement with ShinyHunters to Stop 3.65TB Canvas Leak
American educational technology company Instructure, the parent company of Canvas, said it reached an "agreement" with a decentralized…
OpenAI Launches Daybreak for AI-Powered Vulnerability Detection and Patch Validation
OpenAI has launched Daybreak, a new cybersecurity initiative that brings together frontier artificial intelligence (AI) model capabilities and…
iOS 26.5 Brings Default End-to-End Encrypted RCS Messaging Between iPhone and Android
Apple on Monday officially released iOS 26.5 with support for end-to-end encryption (E2EE) to Rich Communication Services (RCS) in beta as…
TeamPCP Compromises Checkmarx Jenkins AST Plugin Weeks After KICS Supply Chain Attack
Checkmarx has confirmed that a modified version of the Jenkins AST plugin was published to the Jenkins Marketplace. "If you are using…
cPanel CVE-2026-41940 Under Active Exploitation to Deploy Filemanager Backdoor
A threat actor named Mr_Rot13 has been attributed to the exploitation of a recently disclosed critical cPanel flaw to deploy a backdoor…
Hackers Used AI to Develop First Known Zero-Day 2FA Bypass for Mass Exploitation
Google on Monday disclosed that it identified an unknown threat actor using a zero-day exploit that it said was likely developed with an…
⚡ Weekly Recap: Linux Rootkit, macOS Crypto Stealer, WebSocket Skimmers and More
Rough Monday. Somebody poisoned a trusted download again, somebody else turned cloud servers into public housing, and a few crews are still…
Your Purple Team Isn't Purple — It's Just Red and Blue in the Same Room
Defending a network at 2 am looks a lot like this: an analyst copy-pasting a hash from a PDF into a SIEM query. A red team script is being…
Fake OpenAI Privacy Filter Repo Hits #1 on Hugging Face, Draws 244K Downloads
A malicious Hugging Face repository managed to take a spot in the platform's trending list by impersonating OpenAI's Privacy Filter…
Ollama Out-of-Bounds Read Vulnerability Allows Remote Process Memory Leak
Cybersecurity researchers have disclosed a critical security vulnerability in Ollama that, if successfully exploited, could allow a remote,…
cPanel, WHM Release Fixes for Three New Vulnerabilities — Patch Now
cPanel has released updates to address three vulnerabilities in cPanel and Web Host Manager (WHM) that could be exploited to achieve privilege…
TCLBANKER Banking Trojan Targets Financial Platforms via WhatsApp and Outlook Worms
Threat hunters have flagged a previously undocumented Brazilian banking trojan dubbed TCLBANKER that's capable of targeting 59 banking,…
Fake Call History Apps Stole Payments From Users After 7.3 Million Play Store Downloads
Cybersecurity researchers have discovered fraudulent apps on the official Google Play Store for Android that falsely claimed to offer access…
One Click, Total Shutdown: The "Patient Zero" Webinar on Killing Stealth Breaches
The hardest part of cybersecurity isn't the technology, it’s the people. Every major breach you’ve read about lately usually…
Quasar Linux RAT Steals Developer Credentials for Software Supply Chain Compromise
A previously undocumented Linux implant codenamed Quasar Linux RAT (QLNX) is targeting developers' systems to establish a silent foothold as…
One Missed Threat Per Week: What 25M Alerts Reveal About Low-Severity Risk
The dark secret of enterprise security operations is that defenders have quietly institutionalized the practice of not looking. This is not…
New Linux PamDOORa Backdoor Uses PAM Modules to Steal SSH Credentials
Cybersecurity researchers have disclosed details of a new Linux backdoor named PamDOORa that's being advertised on the Rehub Russian…
Linux Kernel Dirty Frag LPE Exploit Enables Root Access Across Major Distributions
Details have emerged about a new, unpatched local privilege escalation (LPE) vulnerability impacting the Linux kernel. Dubbed Dirty Frag, it…
Ivanti EPMM CVE-2026-6973 RCE Under Active Exploitation Grants Admin-Level Access
Ivanti is warning that a new security flaw impacting Endpoint Manager Mobile (EPMM) has been explored in limited attacks in the wild. The…
PCPJack Credential Stealer Exploits 5 CVEs to Spread Worm-Like Across Cloud Systems
Cybersecurity researchers have disclosed details of a new credential theft framework dubbed PCPJack that targets exposed cloud infrastructure…
PAN-OS RCE Exploit Under Active Use Enabling Root Access and Espionage
Palo Alto Networks has disclosed that threat actors may have attempted to unsuccessfully exploit a recently disclosed critical security flaw…
ThreatsDay Bulletin: Edge Plaintext Passwords, ICS 0-Days, Patch-or-Die Alerts and 25+ New Stories
Bad week. Turns out the easiest way to get hacked in 2026 is still the same old garbage: shady packages, fake apps, forgotten DNS junk, scam…
Day Zero Readiness: The Operational Gaps That Break Incident Response
Having an incident response retainer, or even a pre-approved external incident response firm, is not the same as being ready for an incident.…
PyPI Packages Deliver ZiChatBot Malware via Zulip APIs on Windows and Linux
Cybersecurity researchers have discovered three packages on the Python Package Index (PyPI) repository that are designed to stealthily deliver…
vm2 Node.js Library Vulnerabilities Enable Sandbox Escape and Arbitrary Code Execution
A dozen critical security vulnerabilities have been disclosed in the vm2 Node.js library that could be exploited by bad actors to break out of…
Mirai-Based xlabs_v1 Botnet Exploits ADB to Hijack IoT Devices for DDoS Attacks
Cybersecurity researchers have exposed a new Mirai-derived botnet that self-identifies as xlabs_v1 and targets internet-exposed devices…