CVE-2026-69836 (CVSS 10): Entra ID Remote Code Execution Flaw Exploited in the Wild
Do Son 
TL;DR
Microsoft disclosed CVE-2026-69836, a CVSS 10 remote code execution flaw in Entra ID. The company confirms the vulnerability was exploited in the wild. Microsoft has already fully mitigated it in the service, so customers need take no action.
- CVE: CVE-2026-69836
- CVSS: 10.0 (Critical · CVSSv3)
- Product: Microsoft Entra
- Affected: -
- Impact: Microsoft Entra ID Remote Code Execution Vulnerability
- Status: Exploited in the wild
- Action: See vendor advisory
Why This Entra ID Flaw Matters
Entra ID is Microsoft’s cloud identity platform. It sits at the center of access for millions of organizations. Therefore a remote code execution flaw here carries maximum weight. Microsoft scored the bug at a perfect CVSS 10. The vector shows no privileges and no user interaction. The Microsoft advisory confirms the critical rating.
How the Attack Works
The root cause is deserialization of untrusted data, tracked as CWE-502. In short, the service processed attacker-supplied data unsafely. As a result, an unauthorized attacker could run code over the network. Microsoft states the flaw allowed remote code execution without authentication. The company has not published technical exploit details.
Exploitation Status
Microsoft marks this vulnerability as exploited. However, it also states the issue was not publicly disclosed before the fix. The CVSS temporal data lists an unproven exploit maturity with an official fix available. No public proof-of-concept has surfaced at the time of writing.
Affected Versions and Scope
The flaw affects the Entra ID cloud service itself. Because it is a hosted platform, there is no version for customers to patch. Microsoft published the CVE mainly for transparency.
Patch and Mitigation Steps
No customer action is required. Microsoft fixed the flaw server-side across the service. Still, defenders should review identity sign-in logs for anomalies. Monitoring remains good practice after any critical identity flaw.
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