CVE-2026-54407: A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in U

Q: How do I fix CVE-2026-54407?

unifi protect: upgrade to 7.1.83. Exact commands for each OS are on this page.

Q: Is CVE-2026-54407 being exploited?

CVE-2026-54407 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-2026-54407 affect?

CVE-2026-54407 affects unifi protect. Severity is high (CVSS 8.6). A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication in certain UniFi Protect Application API endpoints.

Q: How urgent is CVE-2026-54407?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.6REMOTEUPGRADE

CVE-2026-54407 is a high-severity flaw (CVSS 8.6) affecting unifi protect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication in certain UniFi Protect Application API endpoints.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-07-02
Last modified	2026-10-25

Publisher (CNA): HackerOne · Vendor: ui

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-02 15:17 UTCPublished CVE record published
2026-10-25 21:10 UTCUpdated Record last modified

ui unifi protect UPGRADE

Affected: < 7.1.83

Fixed in: 7.1.83

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy unifi-protect || rpm -q unifi-protect || unifi-protect --version

2. UPGRADE to 7.1.83 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade unifi-protect

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade unifi-protect

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-2026-54407?

unifi protect: upgrade to 7.1.83. Exact commands for each OS are on this page.

Is CVE-2026-54407 being exploited?

CVE-2026-54407 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-2026-54407 affect?

CVE-2026-54407 affects unifi protect. Severity is high (CVSS 8.6). A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication in certain UniFi Protect Application API endpoints.

How urgent is CVE-2026-54407?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

Software pages

Ubiquiti vulnerabilities

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References

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