CVE-2025-49762

HIGH

Windows 10/11, Server 2008 - Privilege Escalation via AFD Race Condition

Title source: llm

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory patch

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49762

Scores

CVSS v3 7.0

EPSS 0.0016

EPSS Percentile 36.8%

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-362

Status published

Products (17)

microsoft/windows_10_1507 < 10.0.10240.21100 (2 CPE variants)

microsoft/windows_10_1607 < 10.0.14393.8330 (2 CPE variants)

microsoft/windows_10_1809 < 10.0.17763.7678 (2 CPE variants)

microsoft/windows_10_21h2 < 10.0.19044.6216

microsoft/windows_10_22h2 < 10.0.19045.6216

microsoft/windows_11_22h2 < 10.0.22621.5768

microsoft/windows_11_23h2 < 10.0.22631.5768

microsoft/windows_11_24h2 < 10.0.26100.4851

microsoft/windows_server_2008 (2 CPE variants)

microsoft/windows_server_2008 r2 sp1

... and 7 more

Published Aug 12, 2025

Tracked Since Feb 18, 2026