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Vulnerabilities

Vulnerability · CVE-2025-64997

Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to inf

Published Dec 18, 2025 · catalog updated Dec 18, 2025 · Checkmk GmbH Checkmk

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-64997. EPSS is 0.24%. Act only if a listed version of Checkmk GmbH Checkmk is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.24%
Remediation
Version ranges on file
Affected products
vendor Checkmk GmbH Checkmk 2.3.0 <2.3.0p42

Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to information disclosure.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Checkmk GmbH Checkmk 2.3.0 <2.3.0p422.3.0 <2.3.0p42

How to fix CVE-2025-64997

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-64997. EPSS is 0.24%. Act only if a listed version of Checkmk GmbH Checkmk is installed.

Which versions are affected?

Compare what you have installed with Checkmk GmbH Checkmk 2.3.0 <2.3.0p42 2.3.0 <2.3.0p42. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 18, 2025 · EUVD

    Detected

    Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to information disclosure.

  2. Dec 18, 2025 · EUVD

    Updated

    Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to information disclosure.

Sources

  • CVE.orgVulnerability recordCVE-2025-64997

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-64997

    30-day exploitation probability 0.24%

    first.org
  • EUVDVulnerability recordEUVD-2025-204254

    Insufficient permission validation in Checkmk versions prior to 2.4.0p17 and 2.3.0p42 allow low-privileged users to view agent information via the REST API, which could lead to information disclosure.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgNov 2, 2026
  • EUVDNov 1, 2026