Link following in Microsoft Windows and Windows Server - CVE-2025-29837

Vulnerability identifier: #VU109115

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-29837

CWE-ID: CWE-59

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to insecure link following in Windows Process Activation. A local user can disclose sensitive information on the target system.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.5854, 10 22H2 10.0.19045.5854, 10 1507 10.0.10240.21014, 10 1607 10.0.14393.8066, 10 1809 10.0.17763.7314, 11 22H2 10.0.22621.5335, 11 23H2 10.0.22631.5335, 11 24H2 10.0.26100.3981, 11 24H2 10.0.26100.4061
Windows Server - addressed in versions 2008 R2 6.1.7601.27729, 2008 6.0.6003.23279, 2012 R2 6.3.9600.22577, 2012 6.2.9200.25475, 2016 10.0.14393.8066, 2019 10.0.17763.7314, 2022 23H2 10.0.25398.1611, 2022 10.0.20348.3630, 2022 10.0.20348.3692, 2025 10.0.26100.3981, 2025 10.0.26100.4061

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29837
• https://www.zerodayinitiative.com/advisories/ZDI-25-293/

• Information disclosure in Microsoft Windows Installer