# CVE-2026-109469 — Microsoft Entra Device Registration

> As of 2026-11-11, CVE-2026-109469 is a CRITICAL-severity vulnerability in Microsoft Entra Device Registration, CVSS v3.1 10, EPSS 0.6% (52.2th percentile). Threadlinqs Intelligence links 4 tracked threat campaigns to CVE-2026-109469, most recently “Microsoft Patch Tuesday November 2026: ~1,095 vulnerabilities, 64 critical, one exploited Outlook NTLM-leak spoofing zero-day (CVE-2026-124194)”.

**Last updated:** 2026-11-11

## What is CVE-2026-109469?

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

The record classifies CVE-2026-109469 under weakness class [CWE-639](https://intel.threadlinqs.com/cwe/CWE-639). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 5 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 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`)
- **EPSS (FIRST):** 0.6% probability of exploitation in the next 30 days, higher than 52.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-11-06

## Is CVE-2026-109469 being exploited?

It currently carries a trending score of 52 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Microsoft](https://intel.threadlinqs.com/vendors/microsoft): Entra Device Registration

## How to fix CVE-2026-109469

Patch reference: [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109469](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109469). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-109469

4 tracked threats in the Threadlinqs corpus reference CVE-2026-109469, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Microsoft Patch Tuesday November 2026: ~1,095 vulnerabilities, 64 critical, one exploited Outlook NTLM-leak spoofing zero-day (CVE-2026-124194)](https://intel.threadlinqs.com/threat/TL-2026-5711) — CRITICAL · 2026-11-11
- [Microsoft November 2026 Patch Release: 1,093 Vulnerabilities Fixed, Outlook Spoofing Zero-Day CVE-2026-124194 Actively Exploited](https://intel.threadlinqs.com/threat/TL-2026-5691) — CRITICAL · 2026-11-10
- [Microsoft November 2026 Patch Tuesday: Outlook Zero-Day CVE-2026-124194 Exploited to Steal NTLM Hashes (1,235 Flaws Fixed)](https://intel.threadlinqs.com/threat/TL-2026-5673) — HIGH · 2026-11-10
- [CVE-2026-109469 - Microsoft Entra Device Registration Elevation of Privilege (CVSS 10.0)](https://intel.threadlinqs.com/threat/TL-2026-5650) — CRITICAL · 2026-11-10

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [msrc.microsoft.com — vendor advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-109469)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-109469
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