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Status published
High
CVE-2025-39664
Path-Traversal in report scheduler
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Lisa Gnedt (SBA Research)
References
More from Checkmk GmbH
View All →CVE-2025-65000
Exposure of SSH Private Keys in Remote Alert Handlers (Linux) Rule
Low
2.3
CVE-2025-64999
Cross-site scripting in HTML logs of Synthetic Monitoring test services
High
7.3
CVE-2025-64998
Session hijacking via exposed session signing secret in distributed Checkmk setups
High
7.3
CVE-2025-64997
Insufficient permission validation when showing agent information
Medium
6.3
CVE-2025-64996
Overly broad file permissions in the mk_inotify plugin allows reading and manipulating the plugin's output
Medium
4.8
Affected Vendor
Checkmk GmbH
View all reports →Affected Software
Checkmk
Vulnerable Versions:
2.4.0, 2.3.0, 2.2.0, 2.1.0
Timeline
Official Publish:
October 9th, 2025
Last Modified:
November 3rd, 2025
Added to House:
July 22nd, 2026