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LegacyHive PoC exposes a Windows Privilege Escalation flaw affecting fully patched Windows desktop and server systems. Just hours after Microsoft’s July 2026 Patch Tuesday, security researcher Nightmare Eclipse, also known as Chaotic Eclipse, published a new Windows zero-day proof-of-concept called LegacyHive. This time, the target is the Windows User Profile Service (ProfSvc), and unlike the […]

More from Security Affairs 16 Jul 2026, 4:57 a.m. Theme · 4 stories 0-Day Exploit Flaw Microsoft Patch Patch Tuesday PoC Privilege Escalation
Krebs on Security 1 year, 2 months ago

Patch Tuesday, May 2025 Edition

Microsoft on Tuesday released software updates to fix at least 70 vulnerabilities in Windows and related products, including five zero-day flaws that are already seeing active exploitation. Adding to the sense of urgency with this month's patch batch from Redmond are fixes for two other weaknesses that now have public proof-of-concept exploits available.

More from Krebs on Security 14 May 2025, 11:57 p.m. 0-Day Exploit Flaw Microsoft Patch Patch Tuesday PoC Vulnerability