CVE-2025-27233

Zabbix Agent 2 smartctl plugin argument injection in Zabbix 6.0 and later.

Published Sep 12, 2025 CVSS 4.0 · 5.7 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update the affected components to their respective fixed versions.


Vendor Workaround

Remove smartctl or use strict item key parameter validation with AllowKey/DenyKey.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-29035 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.
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Zabbix
Zabbix zabbix
Zabbix zabbix-agent
Zabbix zabbix-agent2
Vendors & Products Microsoft
Microsoft windows
Zabbix
Zabbix zabbix
Zabbix zabbix-agent
Zabbix zabbix-agent2
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Zabbix Agent 2 smartctl plugin argument injection in Zabbix 6.0 and later.
Weaknesses CWE-77
References
Metrics cvssV4_0

{'score': 5.7, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Zabbix
Published
Updated
Sep 12, 2025, 11:58 AM
Reserved
Feb 20, 2025, 11:40 AM
Status
Deferred
Published
Sep 12, 2025, 11:15 AM
Modified
Oct 19, 2026, 5:10 PM