CVE-2018-25123 - CVE House
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Status published High CVE-2018-25123

Nagios XI < 5.5.7 Privilege Escalation via MRTG Graphing Component

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Daniel Sayk of Telekom Security

References

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Affected Vendor

Affected Software

XI
Vulnerable Versions:
0

Timeline

Official Publish: October 30th, 2025
Last Modified: November 17th, 2025
Added to House: July 20th, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-250

MITRE ATT&CK TTPs

T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1548 Abuse Elevation Control Mechanism
Defense Evasion
T1078 Valid Accounts
Persistence
T1574 Hijack Execution Flow
Privilege Escalation
T1485 Data Destruction
Impact