CVE-2025-21204 — Link Following in Microsoft Windows 10 Version 1507

CWE-59 — Link Following8 documents5 sources
Severity
7.8HIGHNVD
EPSS
7.3%
top 8.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
27
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+24 more
Timeline
PublishedApr 8
Latest updateJun 6

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages26 packages

▶NVDmicrosoft/windows< 10.0.14393.7969+5
▶NVDmicrosoft/windows_10_1507< 10.0.10240.20978
▶NVDmicrosoft/windows_10_1607< 10.0.14393.7969
▶NVDmicrosoft/windows_10_1809< 10.0.17763.7136
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.5737

🔴Vulnerability Details

2
GHSA
GHSA-429q-ccqc-32wq: Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally↗2025-04-08
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CVEList
Windows Process Activation Elevation of Privilege Vulnerability↗2025-04-08
▶

📋Vendor Advisories

1
Microsoft
Windows Process Activation Elevation of Privilege Vulnerability↗2025-04-08
▶

🕵️Threat Intelligence

4
Bleepingcomputer
Microsoft shares script to restore inetpub folder you shouldn&rsquo;t delete↗2025-06-06
▶
Bleepingcomputer
Windows &quot;inetpub&quot; security fix can be abused to block future updates↗2025-04-25
▶
Bleepingcomputer
Microsoft: Windows &#039;inetpub&#039; folder created by security fix, don&rsquo;t delete↗2025-04-11
▶
Bleepingcomputer
Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws↗2025-04-08
▶
CVE-2025-21204 — Link Following in Microsoft | cvebase