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CVE-2025-34110criticalCWE-22CWE-306CWE-552

ColoradoFTP Server <= 1.3 Build 8 Path Traversal Information Disclosure

63Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 9.3epss 1.3%
from disclosure to weapon0 days
Published on NVDJul 15
metasploitAug 11
exploitation probability
1.3%top 32% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
A directory traversal vulnerability exists in ColoradoFTP Server ≤ 1.3 Build 8 for Windows, allowing unauthenticated attackers to read or write arbitrary files outside the configured FTP root directory. The flaw is due to insufficient sanitation of user-supplied file paths in the FTP GET and PUT command handlers. Exploitation is possible by submitting traversal sequences during FTP operations, enabling access to system-sensitive files. This issue affects only the Windows version of ColoradoFTP.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Affected products
ColoradoFTP · Server
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.