Medium severity · published Oct 9, 2025
CVE-2025-39664
Path-Traversal in report scheduler
6.5
CVSS
0.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Checkmk · Checkmk GmbH
2.4.0 before 2.4.0p13; 2.3.0 before 2.3.0p38; 2.2.0 before 2.2.0p46; 2.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-39664
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-39664
Vendor Advisory
https://checkmk.com/werk/17984
Exploit
https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250730-01_Checkmk_Path_Traversal
Exploit
http://seclists.org/fulldisclosure/2025/Oct/7
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