Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...
A security researcher has published a working exploit for a Microsoft Defender security flaw that affects Windows 10, 11, and ...
New PoC shows how Microsoft Defender can be tricked into rewriting malicious files into protected locations, enabling ...
A security researcher known as Chaotic Eclipse recently disclosed a vulnerability dubbed "Red Sun" affecting Microsoft ...
A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...
RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch available.
The Huntress SOC is observing the use of Nightmare-Eclipse's BlueHammer, RedSun, and UnDefend exploitation techniques. Investigation by: @wbmmfq, @Curity4201, + @_JohnHammond 🧵👇 ...
A security researcher published details of three security vulnerabilities in Windows Defender, and the code used to exploit ...
16hon MSN
Over 1 billion Windows users at risk after disgruntled security research leaks Defender zero-days
The BlueHammer, RedSun and UnDefend flaws put all Windows users at risk since they turn the operating system’s antivirus ...
Microsoft updates Defender in Windows install media to block threats during setup and close early security gaps.
Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.
A new wave of device code phishing shows how threat actors are scaling account compromise using AI and end‑to‑end automation.
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