Local Privilege Escalation in Zabbix Agent on Windows
CVE-2025-27237

7.3HIGH

Key Information:

Vendor

Zabbix

Status
Zabbix
Vendor
CVE Published:
3 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-27237?

The Zabbix Agent and Agent 2 on Windows are susceptible to a vulnerability that allows low-privileged users to alter the OpenSSL configuration file. Because this file is located in a writable path, malicious actors can inject a Dynamic Link Library (DLL), leading to potential environment compromise and local privilege escalation. Organizations using these products should assess their configurations and apply recommended security practices to mitigate the risks associated with this flaw.

Affected Version(s)

Zabbix 6.0.0 <= 6.0.40

Zabbix 7.0.0 <= 7.0.17

Zabbix 7.2.0 <= 7.2.11

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-27237
Created by HackingLZ

References

https://support.zabbix.com/browse/ZBX-27061

CVSS V4

Score:
7.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zabbix wants to thank himbeer for submitting this report on the HackerOne bug bounty platform.
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