CVE-2026-70225
HighCVSS 7.8Summary
Type confusion (access of resource using incompatible type) in the Windows Ancillary Function Driver for WinSock. An authorized attacker can elevate privileges locally.
Risk Assessment
An attacker could gain higher privileges, potentially leading to system takeover.
Recommendation
Immediately apply Microsoft security updates for Windows.
Other vulnerabilities in Windows Ancillary Function Driver for WinSock
See all- CVE-2026-88149High
A double free vulnerability in the Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
- CVE-2026-83738High
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
- CVE-2026-70245High
A type confusion in the Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
- CVE-2026-70237High
Use after free vulnerability in the Windows Ancillary Function Driver for WinSock. An authorized attacker can elevate privileges locally.
- CVE-2026-70205High
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
- CVE-2026-70195Medium
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.
- CVE-2026-70168High
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
- CVE-2026-34344High
The Windows Ancillary Function Driver for WinSock has a vulnerability related to resource access using an incompatible type ('type confusion'), allowing an authorized attacker to elevate privileges locally.
- CVE-2026-20810High
A vulnerability in the Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. The issue involves freeing memory not on the heap.
- CVE-2026-68820HighActively exploited
Use-after-free in Windows Ancillary Function Driver for WinSock. An authorized attacker can elevate privileges locally.
Original NVD description (English source)
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS