CVE-2016-4338
HighSummary
The MySQL user parameter configuration script in the Zabbix agent before version 2.0.18, 2.2.x before 2.2.13, and 3.0.x before 3.0.3, when used with a shell other than bash, allows attackers to execute arbitrary code or SQL commands via the mysql.size parameter.
Risk Assessment
Attackers can exploit this vulnerability to perform unauthorized actions on the system, potentially leading to data loss or system takeover.
Recommendation
It is recommended to update Zabbix to the latest version to mitigate this vulnerability and to restrict the use of shells other than bash in the configuration.
Other vulnerabilities in Zabbix agent
See all- CVE-2026-59781Medium
When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify whether the selected directory had secure access permissions. If the target directory allowed unauthorized users to modify its contents, an attacker could place a malicious DLL that could later be loaded by the application, resulting in DLL sideloading. The installer has been hardened to detect potentially unsafe installation directories and now requires explicit user confirmation before proceeding with installation in such locations.
- CVE-2026-23927Medium
A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.
- CVE-2026-23924Medium
The Zabbix Agent 2 Docker plugin does not properly sanitize the 'docker.container_info' parameters when forwarding them to the Docker daemon. An attacker capable of invoking Agent 2 can read arbitrary files from running Docker containers by injecting them via the Docker archive API.
Original NVD description (English source)
The mysql user parameter configuration script (userparameter_mysql.conf) in the agent in Zabbix before 2.0.18, 2.2.x before 2.2.13, and 3.0.x before 3.0.3, when used with a shell other than bash, allows context-dependent attackers to execute arbitrary code or SQL commands via the mysql.size parameter.