CVE-2025-54154: An improper authentication vulnerability has been reported to affect QNAP Authenticator

Routine

MEDIUM 6.8UPGRADE

CVE-2025-54154 is a medium-severity flaw (CVSS 6.8) affecting authenticator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An improper authentication vulnerability has been reported to affect QNAP Authenticator. If an attacker gains physical access, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: QNAP Authenticator 1.3.1.1227 and later

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-287
Published	2025-10-03
Last modified	2026-10-18

Publisher (CNA): QNAP Systems, Inc. · Vendor: qnap

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-03 19:15 UTCPublished CVE record published
2026-10-18 21:10 UTCUpdated Record last modified

qnap authenticator UPGRADE

Affected: >= 1.3.0 and < 1.3.1.1227

Fixed in: 1.3.1.1227

Safe to downgrade to: a release before 1.3.0

1. Check installed version

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

2. UPGRADE to 1.3.1.1227 (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.

3. If no update is available yet, DOWNGRADE to a release before 1.3.0 (Debian / Ubuntu)

apt-cache madison authenticator sudo apt install authenticator=<VERSION_BEFORE_1.3.0> sudo apt-mark hold authenticator

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list authenticator sudo dnf downgrade authenticator-<VERSION_BEFORE_1.3.0> sudo dnf versionlock add authenticator

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-54154?

authenticator: upgrade to 1.3.1.1227. Exact commands for each OS are on this page.

Is CVE-2025-54154 being exploited?

CVE-2025-54154 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-2025-54154 affect?

CVE-2025-54154 affects authenticator. Severity is medium (CVSS 6.8). An improper authentication vulnerability has been reported to affect QNAP Authenticator. If an attacker gains physical access, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vuln

How urgent is CVE-2025-54154?

Priority 27/100. No elevated risk signals yet.

Software pages

QNAP vulnerabilities

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References

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