CVE-2026-83711

CRITICAL 10.0CVE-2026-83711 · Published 03/09/2026 · updated 14/10/2026

In short

CVE-2026-83711 is a CRITICAL (CVSS 10.0) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.80%, higher than 56.5% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

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

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83711 · Patch

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