CVE-2026-33000 Command injection in UniFi OS Server
Privileged network attackers can execute arbitrary commands on UniFi OS devices via improper input validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33000?
CVE-2026-33000 is a critical command injection vulnerability in Ubiquiti Inc UniFi OS Server, published on 22 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-20
Which versions are affected by CVE-2026-33000?
It affects 1 product.
Products include Ui Unifi Os Server.
How do I fix CVE-2026-33000?
No fix has been published for CVE-2026-33000 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-33000 being exploited?
There is no known exploitation of CVE-2026-33000 in the wild and no public exploit code.
Sources
Also known as GHSA-3ggx-cv4j-6p7j.