CVE-2025-49643

Name	CVE-2025-49643
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1121841

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
zabbix (PTS)	bullseye	1:5.0.8+dfsg-1	vulnerable
	bullseye (security)	1:5.0.46+dfsg-1+deb11u1	vulnerable
	bookworm	1:6.0.14+dfsg-1	vulnerable
	sid, trixie	1:7.0.10+dfsg-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
zabbix	source	(unstable)	(unfixed)			1121841

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