CVE-2026-54402

HIGH
8.8
CVSS Score
Published: July 2, 2026 at 02:49 PM UTC
Updated: July 10, 2026 at 03:01 AM UTC
75 products affected across 2 vendorsUnifi Dream Machine Pro FirmwareEnterprise Network Video Recorder FirmwareUnifi Network Video Recorder Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command Injection on the host device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 5.1.18
ui-enterprise-firewall-core (same device)
v ≤ 5.1.15
ui-enterprise-fortress-gateway (same device)
v ≤ 5.1.15
ui-enterprise-network-video-recorder-core (same device)
v ≤ 5.1.15
ui-enterprise-network-video-recorder (same device)
v ≤ 5.1.16
ui-unas-2 (same device)
v ≤ 5.1.16
ui-unas-4 (same device)
v ≤ 5.1.16
ui-unas-pro-4 (same device)
v ≤ 5.1.16
ui-unas-pro-8 (same device)
v ≤ 5.1.16
ui-unas-pro (same device)
v ≤ 5.1.15
ui-unifi-cloud-gateway-fiber (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20CWE-77

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