Authorization Bypass Vulnerability in Entra Device Registration by Microsoft
CVE-2026-109469

10CRITICAL

Key Information:

Vendor

Microsoft
Status
Entra Device Registration
Vendor
CVE Published:
6 November 2026

What is CVE-2026-109469?

An authorization bypass vulnerability exists in Entra Device Registration, allowing unauthorized attackers to exploit user-controlled keys to gain elevated privileges over a network. This flaw could lead to significant security risks if left unaddressed. Microsoft has released a security advisory and patch to mitigate this issue.

Affected Version(s)

Entra Device Registration -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.