Microsoft Entra ID Flaw (CVSS 10.0) Exploited in Wild, Allows Remote Code Execution
Microsoft on Thursday warned of a maximum-severity security flaw in Entra ID that it said has been exploited in the wild, but noted that no customer action is required. The vulnerability, tracked as CVE-2026-69836 (CVSS score: 10.0), is a case of remote code execution impacting the tech giant's cloud-based identity and access management service. It was previously called Azure Active Directory or Azure AD. "Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network," Microsoft said in an alert released Thursday. Flaws of this kind occur when an application converts user-controlled data back into an active object or code structure without proper validation. This can lead to code execution, denial-of-service, or access control bypass that can permit an attacker to perform unauthorized actions. The company credited Principal Security Engineer Robert Fitzaptrick for discovering and reporting the issue. ...
Aug 21, 2026