CVE-2026-68820 – CyberSecurityBoard

Critical CVEs

ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass With SYSTEM Access

Security researcher Chaotic Eclipse (also known as INFINITE NIGHTMARE, MSNightmare, and Nightmare-Eclipse) has released a proof-of-concept (PoC) for a new Microsoft zero-day…

August 2026 Patch Tuesday Chaotic Eclipse CISA CISA KEV

August 12, 2026

Critical CVEs

Microsoft August 2026 Patch Tuesday: 398 Flaws Fixed, Windows Driver Zero-Day Under Active Attack

Microsoft released its August 2026 Patch Tuesday updates, addressing a total of 398 vulnerabilities, with 62 rated Critical. The most urgent fix…

Check Point Research CVE-2026-55040 CVE-2026-59124 CVE-2026-62815

August 11, 2026

Critical CVEs

CVE-2026-68820: Actively Exploited Windows Ancillary Function Driver Zero-Day

CVE-2026-68820 is an actively exploited zero-day in the Windows Ancillary Function Driver for WinSock that grants SYSTEM privileges. It was patched by…

actively exploited CISA KEV CVE-2026-68820 Windows Ancillary Function Driver

August 11, 2026