CVE-2026-84190

LibreNMS versions before 26.5.0 contain a remote code execution vulnerability in the AboutController where the snmpget configuration parameter is passed to shell_exec() without proper validation. An authenticated administrator can modify the snmpget configuration to point to a malicious executable file and trigger code execution by accessing the /about endpoint.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/librenms/librenms/security/advisories/GHSA-jf24-8g2h-2wg7
https://www.vulncheck.com/advisories/librenms-before-26.5.0-remote-code-execution-via-aboutcontroller
https://github.com/librenms/librenms/security/advisories/GHSA-jf24-8g2h-2wg7

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-01 12:17

Updated : 2026-09-08 20:18

NVD link : CVE-2026-84190

Mitre link : CVE-2026-84190

CVE.ORG link : CVE-2026-84190

JSON object : View

Products Affected

No product.

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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