CVE-2026-54409: A malicious actor with access to the network and under certain conditions could exploit an Improper Initializa

Q: How do I fix CVE-2026-54409?

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

Q: Is CVE-2026-54409 being exploited?

CVE-2026-54409 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-2026-54409 affect?

CVE-2026-54409 affects unifi protect. Severity is high (CVSS 7.5). A malicious actor with access to the network and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.

Routine

HIGH 7.5UPGRADE

CVE-2026-54409 is a high-severity flaw (CVSS 7.5) 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 and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-665
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-2026-54409?

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

Is CVE-2026-54409 being exploited?

CVE-2026-54409 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-2026-54409 affect?

CVE-2026-54409 affects unifi protect. Severity is high (CVSS 7.5). A malicious actor with access to the network and under certain conditions could exploit an Improper Initialization vulnerability found in UniFi Protect Application to bypass authentication in UniFi Protect Cameras.

How urgent is CVE-2026-54409?

Priority 36/100. High severity

Software pages

Ubiquiti vulnerabilities

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References

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