# CVE-2026-83711

## Summary

- **CVE ID:** CVE-2026-83711
- **Severity:** CRITICAL
- **CVSS Score:** 10 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C)
- **CWE:** CWE-639
- **Published:** Sep 3, 2026
- **Last Modified:** Sep 11, 2026

## Description

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

## Affected Products

- Microsoft — Entra (-)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83711)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.58%
- **EPSS Percentile:** 45.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._