CVE-2026-25179

moderate-risk

Published 2026-03-10

Improper validation of specified type of input in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Do I need to act?

0.06% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.0/10 High

LOCAL / HIGH complexity

Affected Products (20)

Windows 10 1607

Windows 10 1809

Windows 10 21H2

Windows 10 22H2

Windows 11 23H2

Windows 11 24H2

Windows 11 25H2

Windows 11 26H1

Windows Server 2012

Affected Vendors

Microsoft

References (1)

Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25179

/ 100

moderate-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 21/34 · High