SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-54401

A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) to escalate privileges within such UniFi OS devices or instances.

HIGH 8.8EPSS 0.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). 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 and low privileges could exploit a Server-Side Request Forgery (SSRF) to escalate privileges within such UniFi OS devices or instances.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.43% probability · 36th percentile
CISA KEV
Not listed
Weakness
CWE-918
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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.