Path Traversal in Hackplayers Evil-Winrm
CVE-2026-55201
Evil-WinRM through 3.9, fixed in commit 6ecd570, contains a path traversal vulnerability in the download_dir() function that allows a rogue or compromised remote Windows server to write files outside the intended download directory by returning filenames with traversal sequences from Get-ChildItem command output that are passed unsanitized to File.join(). Attackers controlling the remote server can exploit this to overwrite sensitive client-side files such as SSH authorized_keys or shell configuration files, achieving persistent access or privilege escalation on the client machine.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Hackplayers Evil-Winrm — versions 0, 6ecd570a298562dc72ad73978307eb34182f5850
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-55201?
- CVE-2026-55201 is a medium-severity vulnerability in Hackplayers Evil-Winrm, classified under Path Traversal. CVSS score: 6.8/10. Published 2026-06-17.
- How severe is CVE-2026-55201?
- Medium severity. CVSS v3 base score is 6.8 out of 10.