UBUNTU-CVE-2025-39666

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Source

https://ubuntu.com/security/CVE-2025-39666

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-39666.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-39666

Upstream

CVE-2025-39666

Published

2026-04-07T13:16:00Z

Modified

2026-04-27T18:52:43.394861Z

Severity

9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Local privilege escalation in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0b3 allows a site user to escalate their privileges to root, by manipulating files in the site context that are processed when the omd administrative command is run by root.

References

Affected packages

Ubuntu:Pro:16.04:LTS / check-mk

Package

Name: check-mk
Purl: pkg:deb/ubuntu/check-mk@1.2.6p12-1ubuntu0.16.04.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.2.6p5-1

1.2.6p12-1

1.2.6p12-1ubuntu0.16.04.1

1.2.6p12-1ubuntu0.16.04.1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-agent"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-agent-logwatch"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-config-icinga"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-config-nagios3"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-livestatus"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-multisite"
        },
        {
            "binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
            "binary_name": "check-mk-server"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-39666.json"

Ubuntu:18.04:LTS / check-mk