CVE-2025-27237

DLL injection in Zabbix Agent and Agent 2 via OpenSSL configuration

Published Oct 3, 2025 CVSS 4.0 · 7.3 High EPSS < 1% KEV · Not listed
Description
In Zabbix Agent and Agent 2 on Windows, the OpenSSL configuration file is loaded from a path writable by low-privileged users, allowing malicious modification and potential local privilege escalation by injecting a DLL.

Remediation

Vendor Solution

Update the affected components to their respective fixed versions.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-32239 In Zabbix Agent and Agent 2 on Windows, the OpenSSL configuration file is loaded from a path writable by low-privileged users, allowing malicious modification and potential local privilege escalation by injecting a DLL.
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
Zabbix
Zabbix zabbix
Zabbix zabbix-agent
Zabbix zabbix-agent2
Zabbix zabbix Agentd
Vendors & Products Microsoft
Microsoft windows
Zabbix
Zabbix zabbix
Zabbix zabbix-agent
Zabbix zabbix-agent2
Zabbix zabbix Agentd
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description In Zabbix Agent and Agent 2 on Windows, the OpenSSL configuration file is loaded from a path writable by low-privileged users, allowing malicious modification and potential local privilege escalation by injecting a DLL.
Title DLL injection in Zabbix Agent and Agent 2 via OpenSSL configuration
Weaknesses CWE-427
References
Metrics cvssV4_0

{'score': 7.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Zabbix
Published
Updated
Feb 26, 2026, 5:48 PM
Reserved
Feb 20, 2025, 11:40 AM
Status
Deferred
Published
Oct 3, 2025, 12:15 PM
Modified
Oct 19, 2026, 5:10 PM