SB2026012218 - Denial of service in Zabbix
Published: January 22, 2026
Security Bulletin ID
SB2026012218
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Asymmetric Resource Consumption (Amplification) (CVE-ID: CVE-2025-49643)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to asymmetric resource consumption in the imgstore.php. A remote attacker on the local network can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.