CVE-2025-21332
Published: 14 January 2025
Summary
CVE-2025-21332 is a medium-severity Improper Resolution of Path Equivalence (CWE-41) vulnerability in Microsoft Windows 10 1507. Its CVSS base score is 4.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Malicious Link (T1204.001); ranked at the 31.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and SI-5 (Security Alerts, Advisories, and Directives).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates the MapUrlToZone bypass vulnerability by requiring timely application of Microsoft patches as specified in the MSRC advisory.
Ensures receipt and implementation of security advisories from MSRC regarding this specific CVE, enabling proactive flaw remediation.
Identifies the presence of the CVE-2025-21332 vulnerability through vulnerability scanning of affected Microsoft components.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is exploited via a specially crafted link requiring user interaction (clicking), directly aligning with malicious link user execution and spearphishing link delivery techniques; the MapUrlToZone bypass facilitates evasion of security restrictions in such attacks.
NVD Description
MapUrlToZone Security Feature Bypass Vulnerability
Deeper analysisAI
CVE-2025-21332 is a MapUrlToZone Security Feature Bypass Vulnerability, published on 2025-01-14. It affects Microsoft software components managed under the Microsoft Security Response Center (MSRC). The vulnerability carries a CVSS v3.1 base score of 4.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N) and is linked to CWE-41, with additional NVD-CWE-noinfo classification.
An unauthenticated network-based attacker can exploit this vulnerability by leveraging low-complexity techniques that require user interaction, such as clicking a specially crafted link. Successful exploitation enables the attacker to bypass the MapUrlToZone security feature, resulting in low-impact confidentiality disclosure without affecting integrity or availability.
Microsoft's advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21332 provides details on mitigation, including available patches and update guidance for affected systems.
Details
- CWE(s)