CVE-2026-83711

critical · 10

Authorization bypass through user-controlled key in Microsoft Azure Active Directory B2C allows an unauthorized attacker to elevate privileges over a network.

CVSS

0.8%

EPSS (exploit prob.)

56th

EPSS percentile

2026-09-03

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weaknesses

CWE-639

Affected products

Vendor	Product	Affected versions
microsoft	azure_active_directory_b2c	all versions

Check a specific version with /api/v1/cve/match.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83711

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-83711