CVE-2025-54103: 
vulnerability analysis and mitigation

A use-after-free vulnerability (CVE-2025-54103) was discovered in Windows Management Services that allows an unauthorized attacker to elevate privileges locally. The vulnerability was disclosed on September 9, 2025, affecting multiple Windows versions including Windows 10, Windows 11, and Windows Server 2025 (NVD, Microsoft).

The vulnerability has been assigned a CVSS v3.1 base score of 7.4 (High) with the following vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. The attack vector is Local (AV:L), with High attack complexity (AC:H), requiring No privileges (PR:N) and No user interaction (UI:N). The scope is Unchanged (S:U), with High impact on Confidentiality, Integrity, and Availability (C:H/I:H/A:H). The vulnerability is classified as CWE-416 (Use After Free) (NVD).

The vulnerability can lead to complete system compromise through privilege elevation, potentially allowing an attacker to gain high-level access to affected systems. The impact ratings indicate potential for high severity outcomes affecting system confidentiality, integrity, and availability (NVD).

Microsoft has released security updates to address this vulnerability. Affected systems include Windows 10 Version 21H2, Windows 11 version 22H2, Windows Server 2025, and other recent Windows versions. Users are advised to apply the latest security updates to mitigate this vulnerability (AttackerKB).