Vulnerability-Lookup

CVE-2018-25123 (GCVE-0-2018-25123)

Vulnerability from cvelistv5 – Published: 2025-10-30 21:40 – Updated: 2025-11-17 18:21

Title

Nagios XI < 5.5.7 Privilege Escalation via MRTG Graphing Component

Summary

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

8.5 (High)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-31 13:05 UTC

CWE

CWE-250 - Execution with Unnecessary Privileges

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://www.nagios.com/changelog/nagios-xi/	release-notespatch
https://www.vulncheck.com/advisories/nagios-xi-pr…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Nagios	XI	Affected: 0 , < 5.5.7 (semver) cpe:2.3:a:nagios:nagios_xi::::::::

Credits

Daniel Sayk of Telekom Security

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2018-25123

Vulnerability from fkie_nvd - Published: 2025-10-30 22:15 - Updated: 2026-06-17 01:54

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://www.nagios.com/changelog/nagios-xi/	Release Notes
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-mrtg-graphing-component	Third Party Advisory

Impacted products

	Vendor	Product	Version
	nagios	nagios_xi	*

JSON

To clipboard

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GHSA-CG42-MQC9-9FHP

Vulnerability from github – Published: 2025-10-31 00:30 – Updated: 2025-11-05 18:31

Details

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.5 (High)


                  
                    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

Show details on source website

JSON

To clipboard

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  ],
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    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-30T22:15:37Z",
    "severity": "HIGH"
  },
  "details": "Nagios XI versions prior to\u00a05.5.7\u00a0contain 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.",
  "id": "GHSA-cg42-mqc9-9fhp",
  "modified": "2025-11-05T18:31:29Z",
  "published": "2025-10-31T00:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-25123"
    },
    {
      "type": "WEB",
      "url": "https://www.nagios.com/changelog/nagios-xi"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-mrtg-graphing-component"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2018-25123 (GCVE-0-2018-25123)

FKIE_CVE-2018-25123

GHSA-CG42-MQC9-9FHP

Tags

Sightings

Nomenclature

Related by attack behaviour