CVE-2025-21204

HIGH

Microsoft Windows 10 1507 < 10.0.10240.20978 - Symlink Following

Title source: rule

Description

Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

Exploits (1)

nomisec WORKING POC 3 stars
by mmotti · poc
https://github.com/mmotti/Reset-inetpub

References (3)

Scores

CVSS v3 7.8
EPSS 0.0725
EPSS Percentile 91.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/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-59
Status published
Products (17)
microsoft/windows_10_1507 < 10.0.10240.20978 (2 CPE variants)
microsoft/windows_10_1607 < 10.0.14393.7969 (2 CPE variants)
microsoft/windows_10_1809 < 10.0.17763.7136 (2 CPE variants)
microsoft/windows_10_21h2 < 10.0.19044.5737
microsoft/windows_10_22h2 < 10.0.19045.5737
microsoft/windows_11_22h2 < 10.0.22621.5189
microsoft/windows_11_23h2 < 10.0.22631.5189
microsoft/windows_11_24h2 < 10.0.26100.3775
microsoft/windows_server_2008 (2 CPE variants)
microsoft/windows_server_2008 r2 sp1
... and 7 more
Published Apr 08, 2025
Tracked Since Feb 18, 2026