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TI-2026-25448 Aliases CVE-2026-33000GHSA-3ggx-cv4j-6p7j

Improper input validation in Ubiquiti UniFi OS Server

Priority MEDIUM 44CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01248 69th percentileScored 2026-11-07
Fix Fixed UniFi OS Server (Ubiquiti Inc): 5.0.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UbiquitiUniFi OS Serverbefore 5.0.85.0.8Patch availableCNA
  • UniFi OS Server VendorUbiquiti Affected before 5.0.8 Fixed in 5.0.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ui:unifi_os_server:*:*:*:*:*:*:*:*before 5.0.8VulnerableUbiquiti
  • cpe:2.3:a:ui:unifi_os_server:*:*:*:*:*:*:*:* Versions before 5.0.8 Vulnerable ·Ubiquiti

Remediation

  • Fix · CNA UniFi OS Server (Ubiquiti Inc) Fixed in 5.0.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Ubiquiti UniFi OS Server 5.0.8

    5 records Highest priority Priority CRITICAL 3 CRITICAL, 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-27142 Improper input validation in Ubiquiti UniFi OS ServerPriority CRITICAL 100
    • TI-2026-27141 Path traversal in Ubiquiti UniFi OS ServerPriority CRITICAL 100
    • TI-2026-27140 Improper access control in Ubiquiti UniFi OS ServerPriority CRITICAL 100
    Show all 5 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33000
  2. 2026-10-03 Alias added: GHSA-3ggx-cv4j-6p7j

References

Patch 1

  • TI-2026-27142 Improper input validation in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-27141 Path traversal in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-27140 Improper access control in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-39278 Improper input validation in Ubiquiti UniFi OS Server CVSS 3.1CRITICAL 9.9
  • TI-2026-39279 Path traversal in Ubiquiti UniFi OS Server CVSS 3.1HIGH 8.6
  • TI-2026-39280 SQL injection in Ubiquiti UniFi OS Server CVSS 3.1HIGH 8.8
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences