# CVE-2015-3306: Old ProFTPD file servers let attackers read and write files

Status: Being used now (CISA KEV, added 2026-10-08)
Who: Anyone running an older ProFTPD file transfer server.
Do this: Update ProFTPD to the latest version.

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is ProFTPD ProFTPD (CVE-2015-3306) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2015-3306. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
ProFTPD contains an improper access control vulnerability that could allow remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.

## Sources
- https://lists.debian.org/debian-security-announce/2015/msg00154.html
- https://lists.opensuse.org/archives/list/updates@lists.opensuse.org/message/WE6YZRG5UVXMGQ7IVDRYBPIWV4M6UUGM/
- https://nvd.nist.gov/vuln/detail/CVE-2015-3306
- https://nvd.nist.gov/vuln/detail/CVE-2015-3306

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.