EUVD-2026-14956
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Description
An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes. The impact depends on environment setup but appears limited at this time.
Analysis
An unauthenticated remote code execution vulnerability exists in Zabbix's Frontend 'validate' action that permits blind instantiation of arbitrary PHP classes without authentication. The vulnerability affects Zabbix products across multiple versions as indicated by the CPE wildcard notation, and while the immediate impact appears limited by environment-specific constraints, successful exploitation could lead to information disclosure or arbitrary code execution depending on available PHP classes in the deployment context. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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