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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2025-10-09

Last Modified

2025-12-04

Generated

2026-07-06

AI Q&A

2025-10-09

EPSS Evaluated

2026-07-05

NVD

CVE-2025-39664

Affected Vendors & Products

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
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
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
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
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
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
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
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
checkmk	checkmk	2.2.0
checkmk	checkmk	2.2.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
checkmk	checkmk	2.3.0
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
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
checkmk	checkmk	2.4.0
checkmk	checkmk	2.4.0
checkmk	checkmk	2.4.0

Helpful Resources

Exploitability

CWE

KEV

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

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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