CVE-2026-85877: Microsoft Windows 11 24h2

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Windows Print Spooler Components allows an unauthorized attacker to execute code over a network.

Affected products

• Microsoft Windows 11 24h2: before 10.0.26100.9445 (fixed in 10.0.26100.9445)

Published 2026-09-08. Last modified 2026-09-09.