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CVE-2026-69836: Microsoft Entra ID Remote Code Execution Vulnerability

criticalpublic exploitCVSS 10CVE-2026-69836
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.

CSIRTS triage

vendor: Microsoftproduct: Microsoft Entra IDUnsafe deserializationRemote code execution
What
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute arbitrary code over a network.
Who is affected
Microsoft Entra ID deployments are exposed to remote code execution by unauthorized attackers.
Urgency
Critical urgency; remote code execution vulnerability with CVSS 10.0 and no authentication required represents the highest priority for immediate remediation.
Action
Apply critical security updates from Microsoft addressing CVE-2026-69836 immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
critical — CVSS 10
Published
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-69836coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

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