Microsoft releases October 2026 security updates for Windows 11
The cumulative updates address security vulnerabilities and bugs while adding features, according to BleepingComputer, which lists KB5127648 and KB5126653 for several Windows 11 versions. Thurrott reports that this month marks the first Patch Tuesday update for version 26H2 and the last monthly update for version 24H2.
- Neowin lists the October updates as KB5127648 and KB5127646.
- Dark Reading reports security bypasses and unauthenticated remote code execution vulnerabilities in Microsoft's broader update.
Covered by 4 publishers within 11 hours of the first report.
Reporting4
Neowin Microsoft drops Office LTSC 2021 security updates on today's Patch Tuesday · Paul Hill
BleepingComputer Windows 11 KB5127648 & KB5126653 cumulative updates released · Mayank Parmar
Thurrott It’s Patch Tuesday and There Are Some Changes · Paul Thurrott
Dark Reading Zero-Days Lurk in Microsoft's Overgrown October Patch Tuesday · Tara Seals