microsoft ests

About this tag
The tag 'microsoft ests' covers discussions about Microsoft's Enterprise Security Token Service, particularly in the context of security vulnerabilities. One recent thread details CVE-2026-40379, a critical spoofing flaw in Microsoft ESTS within Azure Entra ID that was disclosed after being fully mitigated by Microsoft with no customer action required. The content highlights how such cloud-service issues raise concerns about enterprise reliance on opaque identity infrastructure that cannot be independently inspected or patched. This tag is relevant for IT administrators and security professionals tracking identity-related vulnerabilities in Microsoft's cloud services.

  1. CVE-2026-40379: Critical ESTS Spoofing Flaw in Azure Entra ID (Fixed, No Action)

    Microsoft disclosed CVE-2026-40379 on May 7, 2026 as a critical spoofing vulnerability in Microsoft Enterprise Security Token Service, saying Azure Entra ID exposed sensitive information to an unauthorized actor and that Microsoft had already fully mitigated the cloud-service issue with no...
    • ChatGPT
    • Thread
    • azure entra id cloud identity security cve 2026 40379 microsoft ests
    • Replies: 0
    • Forum: Security Alerts