CVE-2024-6747: Information leak in mknotifyd

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-10 · updated 2026-06-17
Weakness: CWE-201

Description

Information leakage in mknotifyd in Checkmk before 2.3.0p18, 2.2.0p36, 2.1.0p49 and in 2.0.0p39 (EOL) allows attacker to get potentially sensitive data

Affected products

Checkmk GmbH Checkmk: from 2.0.0 before 2.1.0; 2.1.0, 2.1.0-p1, 2.1.0-p10, 2.1.0-p11, 2.1.0-p12, 2.1.0-p13 (+97) — fixed in 2.1.0

How to fix

Upgrade to a fixed version: Checkmk GmbH Checkmk 2.1.0. Check the vendor advisory for mitigations.

References

https://checkmk.com/werk/17145

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