CVE-2026-84190 (GCVE-0-2026-84190)
Vulnerability from cvelistv5 – Published: 2026-09-01 11:33 – Updated: 2026-10-08 15:25
VLAI
EPSS
VEX
Title
LibreNMS before 26.5.0 Remote Code Execution via AboutController
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 12:12 UTC
CWE
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/librenms/librenms/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/librenms-bef… | third-party-advisory |
Impacted products
Date Public
2026-08-04 00:00
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| Author | Source | Type | Date | Other |
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Nomenclature
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