High severity8.1NVD Advisory· Published Sep 8, 2026· Updated Sep 8, 2026
CVE-2026-70342
CVE-2026-70342
Description
Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges over a network.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Massive Microsoft Patch Tuesday September 2026 – 973 Vulnerabilities Fixed, Including 2 Zero-DaysCyber Security News · Sep 8, 2026