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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.

PUBLISHED Reserved 2025-10-29 | Published 2025-10-30 | Updated 2025-10-31 | Assigner VulnCheck




HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-250 Execution with Unnecessary Privileges

Product status

Default status
unaffected

Any version before 5.5.7
affected

Credits

Daniel Sayk of Telekom Security finder

References

www.nagios.com/changelog/nagios-xi/ release-notes patch

www.vulncheck.com/...-escalation-via-mrtg-graphing-component third-party-advisory

cve.org (CVE-2018-25123)

nvd.nist.gov (CVE-2018-25123)

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