critical Known exploitedREV. 01

CVE-2015-3306ProFTPD mod_copy — Unauthenticated Arbitrary File Read and Write

The mod_copy module in ProFTPD 1.3.5 lets remote attackers read and write arbitrary files with the site cpfr and site cpto commands. Public exploit code exists, including for command execution.

YOUR NEXT MOVE

Disable the mod_copy module on ProFTPD 1.3.5 servers and move them to a release that fixes this flaw.

Read the risk

THE VITAL STATS
CVSS score
10.0/ 10
CVSS v3.1
EPSS probability
99.5%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2015-05-18
Added to KEV
2026-10-08
CISA due date
2026-10-11
Exploit published
Yes
Confidence
high
Kill chain
initial access
MITRE ATT&CK
T1190
Severity
critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attacker needsNetwork access to a ProFTPD 1.3.5 server with the mod_copy module loaded.

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, published_at, referencesnvd.nist.gov2026-11-05scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_added, exploitation.kev_duecisa.gov2026-11-05scrty-crds-pipeline/0.1high
epssapi.first.org2026-11-05scrty-crds-pipeline/0.1high
title, subtitle, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-11-05claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

History unavailable — this build has no Git history for the card file.