Microsoft Patches Entra ID Security Flaw Allowing Cross-Tenant Global Admin Impersonation
Summary, a critical token validation failure in Microsoft Entra ID, formerly Azure Active Directory, could have let attackers impersonate any user, including Global Administrators, across tenants. The flaw, tracked as CVE-2025-55241, received a CVSS score of 10.0, and Microsoft describes it as a privilege escalation issue in Entra ID. Microsoft fixed the problem on July […]









