CVE-2025-21322

CVE-2025-21322 is an elevation of privilege vulnerability in Microsoft PC Manager, stemming from improper link resolution before file access as indicated by CWE-59. Published on February 11, 2025, it carries a CVSS v3.1 base score of 7.8 (High), with vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, reflecting local access requirements, low attack complexity, and low privileges needed for exploitation, resulting in high impacts to confidentiality, integrity, and availability.

A local attacker with low-level privileges on a system running the affected Microsoft PC Manager can exploit this vulnerability to elevate their privileges. Successful exploitation grants the attacker high-level access, potentially allowing full control over the system, including unauthorized data access, modification, and disruption of services.

The Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21322 provides details on mitigation, recommending that users update to the latest version of Microsoft PC Manager to address the vulnerability.