Windows Ancillary Function Driver for WinSock

PoC PowerShell +516 roundup

Microsoft Security Updates — July 2026

10 CVEs 227 IOCs

Roundup of Microsoft security advisories published in July 2026.

10c 227i updated 15h ago

CVE-2026-41088: Windows Ancillary Function Driver for WinSock Local Privilege Escalation

Windows Ancillary Function Driver for WinSock privilege-escalation windows cve

CVE-2026-41088 is a vulnerability in Windows Ancillary Function Driver for WinSock that allows an authorized attacker to elevate privileges locally due to external control of file name or path.

CVE-2026-35416 - Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability

Windows Ancillary Function Driver for WinSock privilege-escalation use-after-free windows

CVE-2026-35416 is a use-after-free vulnerability in the Windows Ancillary Function Driver for WinSock, enabling a locally authorized attacker to escalate privileges.

CVE-2026-34345 - Windows Ancillary Function Driver for WinSock Race Condition Privilege Escalation

Windows Ancillary Function Driver for WinSock privilege-escalation race-condition windows

CVE-2026-34345 describes a race condition vulnerability in Windows Ancillary Function Driver for WinSock, allowing an authorized attacker to elevate privileges locally.

CVE-2026-34344 - Windows Ancillary Function Driver for WinSock Type Confusion Vulnerability

Windows Ancillary Function Driver for WinSock type-confusion privilege-escalation windows

CVE-2026-34344 is a type confusion vulnerability in the Windows Ancillary Function Driver for WinSock, allowing an authorized local attacker to elevate privileges.