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7.9

Checkmk lets low‑privileged users change notification settings

CVE-2025-58122 · published 11 months ago
Summary

In Checkmk versions before 2.4.0p16, a user with limited rights can use the REST API to alter how notifications are configured. This could allow the user to send false alerts, hide real problems, or view details they should not see. Update Checkmk to version 2.4.0p16 or later, or restrict API access to trusted administrators.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
checkmk checkmk 2.4.0
cpe:2.3:a:checkmk:checkmk:2.4.0:-:*:*:*:*:*:*
Original advisory text
Insufficient permission validation when configuring notification parameters
Insufficient permission validation in Checkmk 2.4.0 before version 2.4.0p16 allows low-privileged users to modify notification parameters via the REST API, which could lead to unauthorized actions or information disclosure.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
7.9 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-280Improper Handling of Insufficient Permissions or Privileges
Timeline
Published18 Nov 2025
Updated26 Oct 2026
First seen7 Mar 2026
Sources
CVE-2025-58122 · NVD
CVE-2025-58122 · OSV
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