CVE-2026-84190LibreNMS before 26.5.0 Remote Code Execution via AboutController
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No exploitation reported and no EPSS estimate yet.
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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
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-77
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
librenms librenms librenms:librenms (from the name) | before 26.5.0; 26.5.0 not affected | CNA record |
References
- https://github.com/librenms/librenms/security/advisories/GHSA-jf24-8g2h-2wg7vendor-advisory
- https://www.vulncheck.com/advisories/librenms-before-26.5.0-remote-code-execution-via-aboutcontrollerthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.