{"id":"CVE-2026-84190","title":"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","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…","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-77"],"vendor":"librenms","product":"librenms","affected":["librenms < 26.5.0"],"published":"2026-09-01","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:17:54.627","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84190","references":[{"url":"https://github.com/librenms/librenms/security/advisories/GHSA-jf24-8g2h-2wg7","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/librenms-before-26.5.0-remote-code-execution-via-aboutcontroller","label":"disclosure@vulncheck.com"},{"url":"https://github.com/librenms/librenms/security/advisories/GHSA-jf24-8g2h-2wg7","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-01T12:12:07.920791Z"},"epss":0.00863,"epssPercentile":0.58394,"ingestedAt":"2026-09-08T21:11:12.289Z","slug":"CVE-2026-84190","body":"## Overview\n\nLibreNMS 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":39.6,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":218179,"id":"CVE-2026-84190","ts":1791478475196,"field":"exploit_available","old":"false","new":"true"}]}