---
id: CVE-2026-80097
title: >-
  Improper authentication in Microsoft Authenticator allows an unauthorized
  attacker to elevate privileges locally.
summary: >-
  Improper authentication in Microsoft Authenticator allows an unauthorized
  attacker to elevate privileges locally.
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-287
vendor: microsoft
product: authenticator
affected:
  - authenticator < 6.2606.4246
patched:
  - authenticator 6.2606.4246
published: '2026-09-08'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T12:59:50.470'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80097'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80097'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
epss: 0.00398
epssPercentile: 0.33857
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-09T04:19:25.882080Z'
ingestedAt: '2026-09-08T19:08:49.631Z'
---

## Overview

Improper authentication in Microsoft Authenticator allows an unauthorized attacker to elevate privileges locally.

## Affected

- `authenticator < 6.2606.4246`

## Remediation

Upgrade past the affected range:

- `authenticator 6.2606.4246`