# CVE-2026-80097 — Microsoft Authenticator for Android

> As of 2026-10-08, CVE-2026-80097 is a HIGH-severity vulnerability in Microsoft Authenticator for Android, CVSS v3.1 8.6, EPSS 0.4% (36.4th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-80097, most recently “Microsoft Authenticator for Android Flaw (CVE-2026-80097, AuthMask) Lets Malicious Apps Steal Account Tokens With Zero Permissions”.

**Last updated:** 2026-10-08

## What is CVE-2026-80097?

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

The record classifies CVE-2026-80097 under weakness class [CWE-287](https://intel.threadlinqs.com/cwe/CWE-287). Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 48 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.6 — HIGH (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 36.4% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-08, last modified 2026-10-08

## Is CVE-2026-80097 being exploited?

It currently carries a trending score of 41 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Microsoft](https://intel.threadlinqs.com/vendors/microsoft): Authenticator for Android

## How to fix CVE-2026-80097

No vendor patch reference has been recorded for CVE-2026-80097 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-80097

2 tracked threats in the Threadlinqs corpus reference CVE-2026-80097, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Microsoft Authenticator for Android Flaw (CVE-2026-80097, AuthMask) Lets Malicious Apps Steal Account Tokens With Zero Permissions](https://intel.threadlinqs.com/threat/TL-2026-4431) — HIGH · 2026-10-26
- [September 2026 Microsoft Patch Tuesday — Record 966+ Vulnerabilities with Two Actively Exploited Zero-Days (CVE-2026-81963, CVE-2026-85880) and Multiple Critical Wormable RCEs](https://intel.threadlinqs.com/threat/TL-2026-2398) — CRITICAL · 2026-09-08

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [msrc.microsoft.com — vendor advisory](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80097)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-80097
Full detection coverage and IOCs for threats exploiting CVE-2026-80097 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp