A critical vulnerability in Microsoft Entra ID (CVE-2025-55241) could allow attackers to impersonate any user, including Global Admins, across tenants, leading to potential full tenant compromise. Microsoft addressed this flaw in July 2025, but the issue highlights significant risks associated with legacy APIs and cross-tenant access abuse. #CVE-2025-55241 #MicrosoftEntraID #AzureAdGraphAPI
Keypoints
- A critical privilege escalation flaw in Microsoft Entra ID was remediated by Microsoft in July 2025.
- The vulnerability stemmed from inadequate validation in the Azure AD Graph API and misuse of actor tokens.
- Attackers could impersonate Global Admins and access sensitive tenant data without leaving traces.
- The legacy API system has been deprecated, urging users to migrate to Microsoft Graph.
- Recent cloud security issues highlight vulnerabilities in misconfigurations and API exploitation across cloud platforms.
Read More: https://thehackernews.com/2025/09/microsoft-patches-critical-entra-id.html