What is CVE-2026-83941?

CVE-2026-83941 is a critical-severity vulnerability in Microsoft Entra, classified under Missing Authorization. CVSS score: 9.9/10. Published 2026-09-08.

How severe is CVE-2026-83941?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Auth bypass in Microsoft Entra

CVE-2026-83941

Missing authorization in Entra ID allows an authorized attacker to elevate privileges over a network.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L.

Affected products

Microsoft Entra

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-83941?: CVE-2026-83941 is a critical-severity vulnerability in Microsoft Entra, classified under Missing Authorization. CVSS score: 9.9/10. Published 2026-09-08.
How severe is CVE-2026-83941?: Critical severity. CVSS v3 base score is 9.9 out of 10.