CVE-2026-69836 (GCVE-0-2026-69836)

Vulnerability from cvelistv5 – Published: 2026-08-20 21:43 – Updated: 2026-09-29 20:19 Exclusively Hosted Service
VLAI CISA
Title
Microsoft Entra ID Remote Code Execution Vulnerability
Summary
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Microsoft Entra Affected: -
    cpe:2.3:a:microsoft:microsoft_entra_id:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-20 14:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Withdrawn: CISA listed this vulnerability and then took the assertion back on 2026-08-22. It is no longer part of that catalog; the entry is kept as a tombstone (GCVE BCP-07).
KEV entry ID: a7f4ec1c-b776-4f34-b8a2-e93a24ab0126

Vulnerability ID: CVE-2026-69836

Status: Withdrawn

Status Updated: 2026-08-22 21:04 UTC

Exploited: No

Timestamps
First Seen: 2026-08-21
Asserted: 2026-08-21
Scope
Notes: Microsoft Entra ID Deserialization of Untrusted Data Vulnerability | Affected: Microsoft / Entra ID | Description: Microsoft Entra ID formerly known as Azure Active Directory contains a deserialization of untrusted data vulnerability which could allow an unauthorized attacker to execute code over a network. | Required action: Apply mitigations inaccordance 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 areresponsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-08-24 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836 ; BOD 26-04:https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-69836 | Withdrawn: removed from the CISA KEV catalog on 2026-08-22(still listed at the 2026-08-21 17:00 UTC import, absent from the Wayback snapshot of the catalog CSV taken 2026-08-22 21:04 UTC) after Microsoft corrected the advisory to "not exploited" (Security Update Guide revision 1.1, 2026-08-21: "Corrected Exploited to No. This vulnerability was not exploited in the wild."). Recorded on 2026-09-09.
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-502
Feed CISA Known Exploited Vulnerabilities Catalog
Product Entra ID
Due Date 2026-08-24
Date Added 2026-08-21
Vendorproject Microsoft
Vulnerabilityname Microsoft Entra ID Deserialization of Untrusted Data Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-09-09 14:50 UTC | Updated: 2026-09-09 15:22 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.