CVE-2026-69836
Received Received - Intake

Deserialization Flaw in Microsoft Entra ID Permits Remote Code Execution

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Microsoft Corporation

Description
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.

CVSS Scores

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-21
AI Q&A
2026-08-21
EPSS Evaluated
N/A
NVD
CVE-2026-69836
EUVD
EUVD-2026-63693

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft entra_id *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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Executive Summary

This vulnerability involves deserialization of untrusted data in Microsoft Entra ID, which allows an unauthorized attacker to execute arbitrary code remotely over a network.

Impact Analysis

An attacker could exploit this to gain full control over affected systems, steal sensitive data, or disrupt services. The high CVSS score indicates severe impact.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR (data protection) and HIPAA (health data privacy) requirements.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Entra ID to address the deserialization flaw. Disable untrusted network access to Entra ID services until patched. Monitor network traffic for unusual code execution attempts targeting Entra ID endpoints.

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