Description
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.
Affected products
microsoft: entra id
References1
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69836 Vendor Advisory
Metrics
- CVSS 3.1
-
10.0
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 2% percentile: 79 · as of 10 November 2026
- CWE
- CWE-502
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.