A disgruntled researcher released a second zero-day Windows Defender exploit, dubbed RedSun, shortly after Microsoft patched ...

Three proof-of-concept exploits are being used in active attacks against Microsoft's built-in security platform; two are ...

Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or ...

Although the team with Microsoft moved swiftly to patch the BlueHammer vulnerability, other exploits still threaten Microsoft ...

RedSun exploit targets Microsoft Defender zero-day, granting SYSTEM access on fully patched Windows systems with no patch ...

A security researcher has published a working exploit for a Microsoft Defender security flaw that affects Windows 10, 11, and ...

A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, ...

A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...

Three Defender zero-days exploited since April 10, 2026, enabling privilege escalation and DoS, forcing isolation of affected ...

Windows has a zero-day vulnerability that allows attackers to escalate their privileges. A patch is not yet available.

New PoC shows how Microsoft Defender can be tricked into rewriting malicious files into protected locations, enabling ...

The exploit uses an insecure behavior of Windows Defender and a file API to secure system rights. It is still unpatched.