CVE-2025-59494: 
Azure Monitor agent vulnerability analysis and mitigation

The Azure Monitor Agent contains an improper access control vulnerability (CVE-2025-59494) that was disclosed on October 14, 2025. This vulnerability allows an authorized attacker with local access to elevate their privileges on affected systems (NIST NVD, Microsoft MSRC).

The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the following vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. This indicates local access is required (AV:L), low attack complexity (AC:L), low privileges required (PR:L), no user interaction needed (UI:N), and high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H). The vulnerability is classified under CWE-284 (Improper Access Control) (NIST NVD).

If exploited, this vulnerability allows an authorized attacker to elevate their privileges locally on affected systems. This could potentially give attackers elevated access to system resources and sensitive data (NIST NVD).

Microsoft has released security updates to address this vulnerability as part of the October 2025 Patch Tuesday updates. System administrators are advised to apply the latest security updates to affected systems (Lansweeper).