CVE-2025-49643

6.0 mediumEPSS 0.3%

An authenticated Zabbix user (including Guest) is able to cause disproportionate CPU load on the webserver by sending specially crafted parameters to /imgstore.php, leading to potential denial of service.

Severity

CVSS 4.0

6.0 medium

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
CWE: CWE-405
Published: 2025-12-01
Modified: 2026-09-26
Record from: the NVD, synced 2026-10-19

Affected

zabbix:frontend

References

https://support.zabbix.com/browse/ZBX-27284

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