CVE-2026-80097: Improper authentication in Microsoft Authenticator allows an unauthorized attacker to elevate privileges local

Q: How do I fix CVE-2026-80097?

authenticator: upgrade to 6.2606.4246. Exact commands for each OS are on this page.

Q: Is CVE-2026-80097 being exploited?

CVE-2026-80097 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-80097 affect?

CVE-2026-80097 affects authenticator. Severity is high (CVSS 8.6). Improper authentication in Microsoft Authenticator allows an unauthorized attacker to elevate privileges locally.

Q: How urgent is CVE-2026-80097?

Priority 45/100. High severity; On your watchlist

This month

HIGH 8.6WATCHLISTUPGRADE

CVE-2026-80097 is a high-severity flaw (CVSS 8.6) affecting authenticator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-09-08
Last modified	2026-09-24

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-09-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-08 18:20 UTCPublished CVE record published
2026-09-24 12:59 UTCUpdated Record last modified

microsoft authenticator UPGRADE

Affected: < 6.2606.4246

Fixed in: 6.2606.4246

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy authenticator || rpm -q authenticator || authenticator --version

2. UPGRADE to 6.2606.4246 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade authenticator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade authenticator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-80097?

authenticator: upgrade to 6.2606.4246. Exact commands for each OS are on this page.

Is CVE-2026-80097 being exploited?

CVE-2026-80097 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-80097 affect?

CVE-2026-80097 affects authenticator. Severity is high (CVSS 8.6). Improper authentication in Microsoft Authenticator allows an unauthorized attacker to elevate privileges locally.

How urgent is CVE-2026-80097?

Priority 45/100. High severity; On your watchlist

Related CVEs

CVE-2026-33875 CRITICAL 9.3 UPGRADE Gematik Authenticator securely authenticates users for login to digital health applications
CVE-2026-41615 CRITICAL 9.6 UPGRADE UPGRADE Exposure of sensitive information to an unauthorized actor in Microsoft Authenticator allows an unauthorized a
CVE-2026-33874 HIGH 7.8 UPGRADE Gematik Authenticator securely authenticates users for login to digital health applications

References

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