major vulnerability· requires attention

Affects Microsoft Entra (Azure AD) device registration — widely deployed identity infrastructure; allows privilege escalation across enterprise networks and can lead to widespread account/device compromise.

Cloud

CVE-2026-109469

10.0

Critical

EPSS n/aPatch available

Authorization bypass in Microsoft Entra Device Registration enabling privilege escalation.

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Patch available see the advisory in the references

likelihood

No EPSS score yet

Published 6 Nov 2026Analysed here 7 Nov 2026CVSS scored by the publisher (CNA)

common questions

Is CVE-2026-109469 being exploited?

Not confirmed. CVE-2026-109469 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.

How severe is CVE-2026-109469?

CVE-2026-109469 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-109469?

Yes. A fix has been recorded for CVE-2026-109469. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-109469 affect?

CVE-2026-109469 affects Microsoft Entra (Azure AD) Device Registration, Entra ID device registration services. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-109469?

Install Microsoft security update now; revoke suspicious device registrations and monitor device/sign-in logs.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

Microsoft Entra (Azure AD) Device RegistrationEntra ID device registration services

impact

User-controlled key allows auth bypass and privilege escalation: attackers can impersonate devices/users, gain elevated access, and perform lateral movement or admin takeover.

action required

Immediate action required

timeline

6 Nov 2026Published
6 Nov 2026CVE record last updated · same day later
7 Nov 2026Analysed by vulneraibility.com · same day later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

1 reference in the CVE record: 1 patch

Patchmsrc.microsoft.com /update-guide/vulnerability/CVE-2026-109469

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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