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CVE-2025-396669.3CriticalCWE-426

CVE-2025-39666: omd: Local privilege escalation when executing omd commands as root

Checkmk GmbH · Checkmk

Vendor fix available · Affected: Checkmk GmbH · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.1%probability of exploitation in the next 30 days
2nd percentile
050100

Higher than 2% of scored CVEs

9.3CriticalCVSS 4.0
LowCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Checkmk GmbH · Checkmk2.2.0; from 2.3.0 before 2.3.0p46; from 2.4.0 before 2.4.0p25; from 2.5.0b1 before 2.5.0b3

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
April 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2025-39666 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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