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Critical Microsoft Entra ID Flaw Actively Exploited

A CVSS 10.0 vulnerability in Microsoft's Entra ID allows remote code execution. No customer action needed as Microsoft has already mitigated the issue.

TL;DR

  • Microsoft patched a critical RCE flaw (CVE-2026-69836) in Entra ID with a perfect CVSS score of 10.0.
  • The vulnerability has been actively exploited in the wild.
  • No customer action is required; Microsoft has already addressed the issue.
  • Entra ID is Microsoft's cloud-based identity and access management solution.
  • Organizations using Entra ID should verify their security logs for suspicious activity.

Microsoft has disclosed a critical remote code execution vulnerability in its cloud identity platform, Entra ID, which has already been exploited in real-world attacks. The flaw, assigned CVE-2026-69836 and carrying a maximum CVSS severity score of 10.0, affects the company’s core identity infrastructure formerly known as Azure Active Directory.

Despite active exploitation, Microsoft stated that customers do not need to take any action, indicating that the vulnerability has already been remediated server-side. However, organizations are advised to monitor their systems for signs of compromise and ensure their security configurations remain up to date.

Vulnerability Overview

  • CVE-2026-69836 is a remote code execution flaw affecting Microsoft Entra ID.
  • It received a CVSS base score of 10.0, indicating critical severity.
  • The vulnerability impacts Microsoft's cloud-based identity and access management system.
  • It was previously part of Azure Active Directory before rebranding to Entra ID.

Impact and Response

  • The flaw has been confirmed as exploited in the wild by threat actors.
  • Microsoft has resolved the issue without requiring customer intervention.
  • Organizations should review logs for unusual authentication or access patterns.
  • Security teams are encouraged to stay informed through Microsoft’s official advisories.
  • This incident highlights the importance of continuous monitoring even after patch deployment.

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Critical Microsoft Entra ID Flaw Actively Exploited — Agent Breach Blog | Agent Breach