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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 […]

Security Affairs 16 Jul 2026, 4:57 a.m. Theme · 4 stories 0-Day Exploit Flaw Microsoft Patch Patch Tuesday PoC Privilege Escalation

The researcher Chaotic Eclipse released a PoC for the RoguePlanet Microsoft Defender zero-day, which can grant SYSTEM privileges on fully patched Windows systems. Security researcher Chaotic Eclipse, also known as Nightmare-Eclipse, has published a new proof-of-concept exploit for a RoguePlanet Microsoft Defender zero-day. The flaw relies on a race condition that can provide attackers with […]

Security Affairs 10 Jun 2026, 9:45 p.m. Theme · 12 stories 0-Day Antivirus Exploit Flaw Microsoft Patch PoC