# CVE-2026-109469: Entra Device Registration Elevation of Privilege Vulnerability

Status: published. Published: 2026-11-06. Updated: 2026-11-06.

Authorization bypass through user-controlled key in Entra Device Registration allows an unauthorized attacker to elevate privileges over a network.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: microsoft) — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109469

## Affected products and versions

- Microsoft / Entra Device Registration: - (affected). Source: CNA: microsoft

## Severity and prioritization

- CVSS 3.1: 10 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C; source: CNA: microsoft

- CVSS 3.1: 10 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H; source: NVD: secure@microsoft.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109469 (CNA: microsoft; vendor-advisory, patch)

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109469 (secure@microsoft.com)

## Provenance

- CNA: microsoft: https://www.cve.org/CVERecord?id=CVE-2026-109469; retrieved 2026-11-07; source updated 2026-11-06

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-109469; retrieved 2026-11-07; source updated 2026-11-06

Revision: e3410e14f09bf9d1b0252146fa88a80824531100215a9ab1b93ab71ae7451502

Canonical: https://y2.dev/cve/CVE-2026-109469

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