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CVE-2026-69836 Details

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

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:10 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836	[email protected]	Vendor Advisory

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Vulnerability Name	Date Added	Due Date	Required Action
Microsoft Entra ID Deserialization of Untrusted Data Vulnerability	Aug 21, 2026	Aug 24, 2026	Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CWE-ID	CWE Name	Source
CWE-502	Deserialization of Untrusted Data	[email protected]

Product	Versions
microsoft entra id	All versions
CPE cpe:2.3:a:microsoft:entra_id:-:::::::* Remediation No remediation found in references.

5 change records found show changes