CVE-2025-39664
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-09

Last updated on: 2025-12-04

Assigner: Checkmk GmbH

Description
Insufficient escaping in the report scheduler within Checkmk <2.4.0p13, <2.3.0p38, <2.2.0p46 and 2.1.0 (EOL) allows authenticated attackers to define the storage location of report file pairs beyond their intended root directory.
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Meta Information
Published
2025-10-09
Last Modified
2025-12-04
Generated
2026-06-16
AI Q&A
2025-10-09
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39664
Affected Vendors & Products
Showing 94 associated CPEs
Vendor Product Version / Range
checkmk checkmk From 2.1.0 (inc) to 2.2.0 (exc)
checkmk checkmk 2.2.0
checkmk checkmk 2.2.0
checkmk checkmk 2.2.0
checkmk checkmk 2.2.0
checkmk checkmk 2.2.0
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checkmk checkmk 2.2.0
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checkmk checkmk 2.2.0
checkmk checkmk 2.2.0
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checkmk checkmk 2.2.0
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checkmk checkmk 2.3.0
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checkmk checkmk 2.4.0
checkmk checkmk 2.4.0
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checkmk checkmk 2.4.0
checkmk checkmk 2.4.0
checkmk checkmk 2.4.0
checkmk checkmk 2.4.0
checkmk checkmk 2.4.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Attack-Flow Graph
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Executive Summary

This vulnerability is due to insufficient escaping in the report scheduler component of Checkmk versions prior to 2.4.0p13, 2.3.0p38, 2.2.0p46, and 2.1.0 (EOL). It allows authenticated attackers to specify the storage location of report file pairs outside their intended root directory, potentially leading to unauthorized file placement.

Impact Analysis

The vulnerability can allow an authenticated attacker to write report files outside the designated directory, which may lead to unauthorized file storage or overwriting of files. This could result in data integrity issues or unauthorized access to sensitive information stored on the system.

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