VulnerabilityAnalyzed
CVE-2026-54403
A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.
HIGH 8.6EPSS 0.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.
- CVSS 3.1
- 8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 0.77% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- ui/unifi os server · ui/unifi dream machine firmware · ui/unifi dream machine pro firmware · ui/unifi dream machine special edition firmware · ui/unifi dream machine pro max firmware · ui/unifi dream machine beast firmware · ui/enterprise fortress gateway firmware · ui/unifi dream router firmware · ui/unifi dream wall firmware · ui/unifi dream router 7 firmware · ui/unifi express 7 firmware · ui/unifi cloudkey firmware · ui/unifi cloud key plus firmware · ui/unifi cloudkey enterprise firmware · ui/unifi network video recorder firmware · ui/unifi network video recorder pro firmware · ui/unifi network video recorder instant firmware · ui/enterprise network video recorder firmware · ui/enterprise network video recorder core firmware · ui/unifi network video recorder g2 firmware · +12 more
- Source
- support@hackerone.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.