CVE-2025-27233 Zabbix Agent 2 smartctl plugin argument injection in Zabbix 6.0 and later.
Attackers can inject arguments into smartctl commands via Zabbix Agent 2, potentially leaking NTLMv2 hashes from Windows systems.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-27233?
CVE-2025-27233 is a medium-severity command injection vulnerability in Zabbix, published on 12 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Zabbix Agent 2 smartctl plugin does not properly sanitize smart.disk.get parameters, allowing an attacker to inject unexpected arguments into the smartctl command. This can be used to leak the NTLMv2 hash from a Windows system.
Weakness: CWE-77
Which versions are affected by CVE-2025-27233?
How do I fix CVE-2025-27233?
Apply the vendor's patch.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2025-27233 being exploited?
There is no known exploitation of CVE-2025-27233 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-27233, GHSA-hh74-wwvh-3g5f, UBUNTU-CVE-2025-27233.