Microsoft September 2026 Patch Tuesday: 2 Zero-Days and 100+ Critical Vulnerabilities Fixed
Microsoft’s September 2026 Patch Tuesday release addresses 974 vulnerabilities, including two actively exploited zero-day flaws. The two zero-days, CVE-2026-81963 in Windows Update Stack and CVE-2026-85880 in Windows ALPC, are both elevation-of-privilege vulnerabilities that could allow an attacker to gain SYSTEM-level privileges. Microsoft’s September security release also fixes a large number of Critical-rated vulnerabilities, including serious … Read more