{"id":"CVE-2018-25123","aliases":["EUVD-2018-21608","GHSA-cg42-mqc9-9fhp"],"status":"published","title":"Nagios XI \u003c 5.5.7 Privilege Escalation via MRTG Graphing Component","description":"Nagios XI versions prior to 5.5.7 contain a privilege escalation vulnerability in the MRTG graphing component. MRTG-related processes/scripts executed with excessive privileges, allowing a local attacker with limited system access to abuse file/command execution paths or writable resources to gain elevated privileges.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00348,"percentile":0.28815,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-250"],"published":"2025-10-30T21:40:26Z","modified":"2026-10-18T00:10:00Z","products":[{"vendor":"nagios","product":"nagios_xi"},{"vendor":"nagios","product":"xi"}],"references":[{"url":"https://www.nagios.com/changelog/nagios-xi/","tags":["release-notes","patch","Release Notes"]},{"url":"https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-mrtg-graphing-component","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-25123"},{"url":"https://www.nagios.com/changelog/nagios-xi"},{"url":"https://github.com/advisories/GHSA-cg42-mqc9-9fhp"}],"sources":{"cve":[{"id":"CVE-2018-25123","title":"Nagios XI \u003c 5.5.7 Privilege Escalation via MRTG Graphing Component","description":"Nagios XI versions prior to 5.5.7 contain a privilege escalation vulnerability in the MRTG graphing component. MRTG-related processes/scripts executed with excessive privileges, allowing a local attacker with limited system access to abuse file/command execution paths or writable resources to gain elevated privileges.","status":"published","published":"2025-10-30T21:40:26.892Z","modified":"2025-11-17T18:21:39.196Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T14:35:01.952568Z"}],"euvd":[{"id":"EUVD-2018-21608","description":"Nagios XI versions prior to 5.5.7 contain a privilege escalation vulnerability in the MRTG graphing component. MRTG-related processes/scripts executed with excessive privileges, allowing a local attacker with limited system access to abuse file/command execution paths or writable resources to gain elevated privileges.","status":"published","published":"2025-10-30T21:40:26Z","modified":"2025-11-17T18:21:39Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:49:16.584357Z"}],"ghsa":[{"id":"GHSA-cg42-mqc9-9fhp","title":"Nagios XI versions prior to 5.5.7 contain a privilege escalation vulnerability in the MRTG...","description":"Nagios XI versions prior to 5.5.7 contain a privilege escalation vulnerability in the MRTG graphing component. MRTG-related processes/scripts executed with excessive privileges, allowing a local attacker with limited system access to abuse file/command execution paths or writable resources to gain elevated privileges.","status":"published","published":"2025-10-31T00:30:31Z","modified":"2025-11-05T18:31:30Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T15:04:40.688125Z"}],"nvd":[{"id":"CVE-2018-25123","description":"Nagios XI versions prior to 5.5.7 contain a privilege escalation vulnerability in the MRTG graphing component. MRTG-related processes/scripts executed with excessive privileges, allowing a local attacker with limited system access to abuse file/command execution paths or writable resources to gain elevated privileges.","status":"published","published":"2025-10-30T22:15:37.967Z","modified":"2026-10-18T00:10:00.123Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-250"],"updated_at":"2026-11-02T14:05:01.494136Z"}]}}