September 9, 2026
- Microsoft shipped 974 fixes, 113 of them critical — by far the largest Patch Tuesday ever and well ahead of July's previous record. Two Windows privilege-escalation zero-days, CVE-2026-81963 and CVE-2026-85880, are being actively exploited. Also flagged: CVE-2026-69730, an unauthenticated DNS flaw on Windows Server 2012 onward and Windows 10 rated "exploitation more likely", and CVE-2026-69829, a Windows Shell RCE at CVSS 9.8 with no user interaction. Microsoft credits AI-assisted discovery for the volume; SANS counts 973 and notes critical RCEs in Skype for Business, MSMQ and RRAS (Krebs on Security, SANS ISC) (discussion). · Patch Tuesday & Active Exploitation
in One Phone Call, Zero Clicks: A WeChat Worm Crossed iOS and Android