VulnerabilityAnalyzed
CVE-2025-39664
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.
HIGH 7.1EPSS 0.69%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 4.0
- 7.1 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.69% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- checkmk/checkmk
- Source
- security@checkmk.com
References
- https://checkmk.com/werk/17984Vendor Advisory
- https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250730-01_Checkmk_Path_TraversalExploit, Third Party Advisory
- http://seclists.org/fulldisclosure/2025/Oct/7Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.