CVE-2026-69836: CWE-502: Deserialization of Untrusted Data in Microsoft Microsoft Entra
Description
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 10.0critical
Affected software
Microsoft
Microsoft Entra
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-502) in Microsoft Entra ID arises from improper handling of deserialization of untrusted data, enabling remote code execution without requiring privileges or user interaction. The CVSS 3.1 base score is 10.0, reflecting critical impact with network attack vector, low complexity, no privileges required, and no user interaction. The vulnerability affects Microsoft Entra and has an official patch available as per Microsoft's advisory.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely, compromising system confidentiality, integrity, and availability. This can lead to full system takeover or disruption of services.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch immediately to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836 for detailed patching instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T22:51:46.190Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836","vendor":"Microsoft"}]
Threat ID: 6a87778cacd9273b492c5ef2
Added to database: 08/20/2026, 21:54:20 UTC
Last enriched: 09/29/2026, 03:02:49 UTC
Last updated: 10/04/2026, 19:01:00 UTC
Views: 102
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.