CVE Catalog

CVE-2026-59783

LowCVSS 2.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

12th percentile - higher than 12% of all known CVEs

Summary

The Zabbix Server/Proxy has a vulnerability where binary items can crash the Server/Proxy on certain NULL byte input, leading to potential loss of availability. This only affects deployments where MySQL/MariaDB database is used as the Zabbix database.

Risk Assessment

An attacker can crash the Zabbix Server/Proxy, causing monitoring unavailability and loss of infrastructure observability.

Recommendation

Update Zabbix to a version with the fix; if not possible, consider restricting binary item submission by untrusted users.

Related vulnerabilities

Original NVD description (English source)

The Zabbix Server/Proxy has a vulnerability where binary items can crash the Server/Proxy on certain NULL byte input leading to potential loss of availability. This only affects deployments where MySQL/MariaDB database is used as the Zabbix database.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS