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CVE-2026-50746: A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in U

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CRITICAL 10.0REMOTEUPGRADE

CVE-2026-50746 is a critical-severity flaw (CVSS 10.0) affecting unifi connect application. 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 Connect Application to execute a Command Injection on the host device.

Why this priority

  • Critical severity
  • CISA SSVC: automatable with total technical impact
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score10.0 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.7% (top 23%)
CISA exploited listNo
WeaknessCWE-284
Published2026-07-02
Last modified2026-10-25
Publisher (CNA): HackerOne · Vendor: ui

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

Am I affected?

Timeline

ui unifi connect application UPGRADE
Affected: < 3.24.20
Fixed in: 3.24.20
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy unifi-connect-application || rpm -q unifi-connect-application || unifi-connect-application --version
2. UPGRADE to 3.24.20 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade unifi-connect-application
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade unifi-connect-application
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · mingw-qt5-qtwebkit · FIXED · 5.212.0-0.46.alpha4.fc46 · FEDORA-2026-46ae541c22 · source
sudo dnf upgrade --advisory=FEDORA-2026-46ae541c22
Fedora ELN · kdominate · FIXED · 26.08.2-2.eln159 · FEDORA-2026-b1d98239fd · source
sudo dnf upgrade --advisory=FEDORA-2026-b1d98239fd

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

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-2026-50746?

unifi connect application: upgrade to 3.24.20. Exact commands for each OS are on this page.

Is CVE-2026-50746 being exploited?

CVE-2026-50746 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-2026-50746 affect?

CVE-2026-50746 affects unifi connect application. Severity is critical (CVSS 10.0). A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Connect Application to execute a Command Injection on the host device.

How urgent is CVE-2026-50746?

Priority 62/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

Ubiquiti vulnerabilities

References

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