Protection Mechanism Failure in Microsoft Windows and Windows Server - CVE-2025-54917

Vulnerability identifier: #VU115112

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-54917

CWE-ID: CWE-693

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient implementation of security measures in MapUrlToZone. A remote attacker can bypass implemented security restrictions and gain access to sensitive information on the system.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.6332, 10 22H2 10.0.19045.6332, 10 1507 10.0.10240.21128, 10 1607 10.0.14393.8422, 10 1809 10.0.17763.7792, 11 22H2 10.0.22621.5909, 11 23H2 10.0.22631.5909, 11 24H2 10.0.26100.6508, 11 24H2 10.0.26100.6584
Windows Server - addressed in versions 2008 R2 6.1.7601.27929, 2008 6.0.6003.23529, 2012 R2 6.3.9600.22774, 2012 6.2.9200.25675, 2016 10.0.14393.8422, 2019 10.0.17763.7792, 2022 23H2 10.0.25398.1849, 2022 10.0.20348.4106, 2022 10.0.20348.4171, 2025 10.0.26100.6508, 2025 10.0.26100.6584

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54917

• Multiple vulnerabilities in Microsoft MapUrlToZone