CVE-2026-33000

critical · 9.1

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.

9.1

CVSS

1.2%

EPSS (exploit prob.)

68th

EPSS percentile

2026-05-22

Published

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-20

Affected products

Vendor	Product	Affected versions
ui	unifi_os_server	< 5.0.8

Check a specific version with /api/v1/cve/match.

References

https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-33000