Microsoft Authenticator Local Privilege Escalation

Publication date: 2026-09-08

Last updated on: 2026-09-24

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-24

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-80097

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	authenticator	to 6.2606.4246 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Attack-Flow Graph

Executive Summary

Improper authentication in Microsoft Authenticator allows an unauthorized attacker to elevate privileges locally. This means an attacker without proper credentials could gain higher access rights on a system.

Impact Analysis

An attacker could exploit this to gain elevated privileges on your system, potentially allowing them to install malicious software, access sensitive data, or perform unauthorized actions.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Authenticator to address the improper authentication issue.

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