CVE-2026-55201
HIGH EPSS 22.1%
Published Jun 17, 20261w ago · Modified Jun 23, 20266d ago
7.4 CVSS 4.0
Published Jun 17, 2026 1w ago
Last Modified Jun 23, 2026 6d ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X
Threat Intelligence
EPSS Exploit Probability
22.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-22 Path Traversal Resource Mgmt
References 3
- github.com https://github.com/Hackplayers/evil-winrm/commit/6ecd570a298562dc72ad73978307eb34182f5850
- github.com https://github.com/Hackplayers/evil-winrm/pull/81
- vulncheck.com https://www.vulncheck.com/advisories/evil-winrm-path-traversal-in-download-dir-function
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.