CVE-2018-25123

Nagios XI < 5.5.7 Privilege Escalation via MRTG Graphing Component

Published Oct 30, 2025 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Nagios addresses this vulnerability as "Fixed privilege escalation security vulnerability in MRTG graphing component by running as nagios user/group."

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Nagios nagios Xi
CPEs cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*
Vendors & Products Nagios nagios Xi
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Nagios
Nagios nagios
Nagios xi
Vendors & Products Nagios
Nagios nagios
Nagios xi
Type Values Removed Values Added
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.
Title Nagios XI < 5.5.7 Privilege Escalation via MRTG Graphing Component
Weaknesses CWE-250
References
Metrics cvssV4_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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 17, 2025, 6:21 PM
Reserved
Oct 29, 2025, 8:49 PM
Status
Analyzed
Published
Oct 30, 2025, 10:15 PM
Modified
Oct 18, 2026, 12:10 AM