What is CVE-2018-25123?

CVE-2018-25123 is a high-severity vulnerability in Nagios Xi, classified under CWE-250. CVSS score: 7.8/10. Published 2025-10-30.

How severe is CVE-2018-25123?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Nagios Xi

CVE-2018-25123

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.

EPSS: 0.003 (24.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nagios Nagios_xi
Nagios Xi — versions 0

Weakness classification (CWE)

CWE-250

References

disclosure@vulncheck.com (release-notes, Release Notes, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-25123?: CVE-2018-25123 is a high-severity vulnerability in Nagios Xi, classified under CWE-250. CVSS score: 7.8/10. Published 2025-10-30.
How severe is CVE-2018-25123?: High severity. CVSS v3 base score is 7.8 out of 10.