A proof-of-concept (PoC) exploit dubbed BlueHammer has been publicly released by security researcher Nightmare Eclipse (also known as Chaotic Eclipse), targeting a zero-day local privilege escalation (LPE) vulnerability in Microsoft Windows Defender’s signature update mechanism. The release, confirmed functional by principal vulnerability analyst Will Dormann of Tharros, underscores a growing frustration with Microsoft’s Security Response […] The post BlueHammer PoC for Windows Defender Exploited by Researchers to Escalate Privileges appeared first on Cyber Security News.