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CVE-2026-54408: A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in U

47
This month
HIGH 8.6REMOTEUPGRADE

CVE-2026-54408 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 for data streaming.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score8.6 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.6% (top 53%)
CISA exploited listNo
WeaknessCWE-284
Published2026-07-02
Last modified2026-10-25
Publisher (CNA): HackerOne · Vendor: ui

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

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-2026-54408?

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

Is CVE-2026-54408 being exploited?

CVE-2026-54408 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-2026-54408 affect?

CVE-2026-54408 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 for data streaming.

How urgent is CVE-2026-54408?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Software pages

Ubiquiti vulnerabilities

Related CVEs

References

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