# CVE-2025-34110

## Summary

- **CVE ID:** CVE-2025-34110
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (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)
- **CWE:** CWE-22, CWE-552, CWE-306
- **Published:** Jul 15, 2025
- **Last Modified:** May 15, 2026

## Description

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.

## Affected Products

- ColoradoFTP — Server (*)
- ColoradoFTP — Server (0)

## References

- [CNA](https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/ftp/colorado_ftp_traversal.rb)
- [CNA](https://www.exploit-db.com/exploits/40231)
- [CNA](https://bitbucket.org/nolife/coloradoftp/commits/16a60c4a74ef477cd8c16ca82442eaab2fbe8c86)
- [CNA](https://www.vulncheck.com/advisories/colorado-ftp-server-path-traversal-information-disclosure)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.86%
- **EPSS Percentile:** 78.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._