CVE-2026-25178

HIGH

Windows AFD for WinSock - Privilege Escalation

Title source: llm
STIX 2.1

Description

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

References (1)

Scores

CVSS v3 7.0
EPSS 0.0004
EPSS Percentile 11.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (37)
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.8957
Microsoft/Windows 10 Version 1809 10.0.17763.0 - 10.0.17763.8511
Microsoft/Windows 10 Version 21H2 10.0.19044.0 - 10.0.19044.7058
Microsoft/Windows 10 Version 22H2 10.0.19045.0 - 10.0.19045.7058
Microsoft/Windows 11 version 22H3 10.0.22631.0 - 10.0.22631.6783
Microsoft/Windows 11 Version 23H2 10.0.22631.0 - 10.0.22631.6783
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8037
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8037
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.1719
Microsoft/Windows 11 Version 26H1 10.0.28000.0 - 10.0.28000.1719
... and 27 more
Published Mar 10, 2026
Tracked Since Mar 11, 2026