Microsoft's September 2026 Patch Tuesday Fixes a Record 966 Flaws
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins87% CONFIDENCEOverall confidence: 87%How well the pin's source and references back up its dates.Weighted average of how firmly 6 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterStated as firm, per bleepingcomputer.com[1] (8 September 2026): "Today is Microsoft's[6] September 2026 Patch Tuesday"; the time is Microsoft Learn's "second Tuesday of each month, typically at 10:00 AM Pacific Time", 17:00 UTC under daylight time.
Microsoft's largest security update ever patches 966 vulnerabilities, including two Windows privilege-escalation zero-days already exploited in attacks and 105 rated Critical.