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CVE-2025-58121

MEDIUMCVSS 5.3/10EPSS 0.17%

Last modified

CVE-2025-58121 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version 2.4.0p16 allows low-privileged users to perform unauthorized actions or obtain sensitive information. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version 2.4.0p16 allows low-privileged users to perform unauthorized actions or obtain sensitive information

Metrics

CVSS 3.1
5.4/10

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

CVSS 4.0
5.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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

EPSS Probability
0.17%

7.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CheckmkCheckmk>= 2.2.0, < 2.4.0
CheckmkCheckmk2.4.0

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2025-58121?
Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version 2.4.0p16 allows low-privileged users to perform unauthorized actions or obtain sensitive information
How severe is CVE-2025-58121?
CVE-2025-58121 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2025-58121?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-58121?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST