Introduction
Privilege escalation in Microsoft Azure Entra ID can undermine the security boundaries of entire organizations and expose sensitive resources and administrative controls to unauthorized actors. CVE-2025-59246 is a critical vulnerability in that platform. It shows that securing the cloud identity systems businesses worldwide rely on is still difficult.
Technical Information
CVE-2025-59246 is classified as an elevation of privilege vulnerability in Azure Entra ID and has a CVSS score of 9.8. It is associated with CWE-306 (Missing Authentication for Critical Function), which indicates that certain critical functions within Entra ID may be accessible without proper authentication. An attacker could use this to bypass intended access controls and escalate privileges within the affected environment.
Microsoft disclosed the vulnerability on 2025-10-09. As of that date, no public source has published specific exploitation details, vulnerable code snippets, or attack vectors. No information is available on the exact mechanism, the affected API endpoints, or the prerequisites an attacker would need.
Affected Systems and Versions
- Product: Microsoft Azure Entra ID
- No public source has published specific version numbers or configuration details
- Treat every environment that uses Azure Entra ID as potentially affected until further details are released
Vendor Security History
Microsoft Azure Entra ID has had several significant vulnerabilities in 2025. In one of them, CVE-2025-55241, token validation flaws in legacy APIs let attackers impersonate users across tenants. Microsoft usually responds with 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.
