CVE-2025-49643

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.zabbix.com/browse/ZBX-27284	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:zabbix:frontend::::::::
	cpe:2.3:a:zabbix:frontend::::::::
	cpe:2.3:a:zabbix:frontend::::::::
	cpe:2.3:a:zabbix:frontend::::::::

History

06 Feb 2026, 15:28

Type	Values Removed	Values Added
First Time		Zabbix Zabbix frontend
CPE		cpe:2.3:a:zabbix:frontend::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
References	~~() https://support.zabbix.com/browse/ZBX-27284 -~~	() https://support.zabbix.com/browse/ZBX-27284 - Vendor Advisory

01 Dec 2025, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-01 14:16

Updated : 2026-02-06 15:28

NVD link : CVE-2025-49643

Mitre link : CVE-2025-49643

CVE.ORG link : CVE-2025-49643

JSON object : View

Products Affected

zabbix

frontend

CWE

CWE-405

Asymmetric Resource Consumption (Amplification)

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