CVE-2015-3306
CRITICAL severity · CVSS 10 · Improper access control · actively exploited (CISA KEV)
10CVSS CRITICAL exploited
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2026-10-08. US federal agencies must patch by 2026-10-11.
Summary
The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)98%
AV:N/AC:L/Au:N/C:C/I:C/A:C
Affected products we track (5)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html
- http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html
- http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html
- http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html