Introduction
Privilege escalation in Microsoft Azure Entra ID has the potential to undermine the security boundaries of entire organizations, exposing sensitive resources and administrative controls to unauthorized actors. CVE-2025-59246 is a critical vulnerability that highlights the ongoing challenges in securing cloud identity platforms relied upon by businesses worldwide.
Technical Information
CVE-2025-59246 is classified as an elevation of privilege vulnerability in Azure Entra ID, with a CVSS score of 9.8. The flaw is associated with CWE-306 (Missing Authentication for Critical Function), indicating that certain critical functions within Entra ID may be accessible without proper authentication. This could allow an attacker to bypass intended access controls and escalate privileges within the affected environment.
No specific technical exploitation details, vulnerable code snippets, or attack vectors have been published in public sources as of the disclosure date. The vulnerability was disclosed by Microsoft on 2025-10-09. There is no information on the exact mechanism, affected API endpoints, or required attacker prerequisites.
Affected Systems and Versions
- Product: Microsoft Azure Entra ID
- No specific version numbers or configuration details have been published in public sources
- All environments using Azure Entra ID should be considered potentially affected until further details are released
Vendor Security History
Microsoft Azure Entra ID has experienced several significant vulnerabilities in 2025. Notably, CVE-2025-55241 allowed attackers to impersonate users across tenants due to token validation flaws in legacy APIs. Microsoft's typical response involves rapid server-side fixes and public advisories. The company has invested heavily in secure development and threat intelligence, but legacy components and complex identity architectures have contributed to recurring high-impact vulnerabilities.
