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2026-11-07 · critical
CVE-2026-109469: Authorization Bypass in Entra Device Registration
Critical bypass in Entra Device Registration enables privilege elevation over network. CVSS 10.0. No patch yet.
CVE-2026-109469 is an authorization bypass in Microsoft Entra Device Registration that allows an unauthenticated attacker to elevate privileges over a network by manipulating a user-controlled key. The vulnerability impacts identity and access management systems across enterprises.
The vulnerability scores CVSS 10.0, the highest possible rating, with critical classification. Public signals on X show 3 posts in the last 24 hours with 13 total interactions, indicating community awareness. As of today, no official patch has been released.
IT administrators and CISOs must immediately inventory all systems using Entra Device Registration and isolate those exposed to uncontrolled network traffic. In parallel, implement additional access controls and monitor authentication logs for exploitation signs while the patch is pending.
At a glance
- What
- Authorization bypass with user-controlled key in Entra Device Registration. Affects identity and access management systems.
- Severity
- CVSS 10.0 (critical). Maximum impact on confidentiality, integrity, and availability.
- Affected versions
- Not reported in available NVD official documentation.
- Fix
- Not reported. Patch documentation not yet available.
- Status
- Published November 6, 2026. No patch confirmed.
- Action
- Inventory Entra Device Registration usage across network perimeters. Implement additional access controls pending official patch.
Sources: NVD, CVE-2026-109469