CVE-2025-59246
Published: 09 October 2025
Summary
CVE-2025-59246 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Microsoft Entra Id. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 43.0th 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 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly addresses CWE-306 by identifying and restricting permitted actions without identification or authentication, preventing unauthenticated privilege elevation.
Requires identification and authentication for non-organizational users or processes, blocking unauthenticated attackers from exploiting the elevation vulnerability.
Enforces approved authorizations for access to system resources, preventing unauthorized privilege escalation in Azure Entra ID.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated network-accessible elevation of privilege in public-facing Azure Entra ID service directly enables T1190 (Exploit Public-Facing Application) for initial access and T1068 (Exploitation for Privilege Escalation).
NVD Description
Azure Entra ID Elevation of Privilege Vulnerability
Deeper analysisAI
CVE-2025-59246 is an elevation of privilege vulnerability in Azure Entra ID. Published on 2025-10-09T21:15:38.267, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) and is associated with CWE-306 (Missing Authentication for Critical Function).
Unauthenticated attackers with network access can exploit this vulnerability with low attack complexity and no user interaction required. Successful exploitation enables elevation of privileges, resulting in high impacts to confidentiality, integrity, and availability.
Microsoft provides details on mitigation in its Security Response Center update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59246.
Details
- CWE(s)