Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2015-3306

CVE-2015-3306CRITICAL

n/a n/a — 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.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  C  H  H  H   10.0   .9950   99.9   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Apr 15  Reserved by mitre
  May 18  Published (CNA: mitre)
  Oct 8   ADDED TO KEV — CVE-2015-3306. Remediation due October 11, 2026.
  Oct 12  DUE DATE PASSED — CVE-2015-3306. CISA remediation deadline was October 11, 2026; still in catalog.

CWE-284 · CNA: mitre · CVSS v3.1 · 15 references · NVD status: Analyzed · KEV due October 11, 2026

Description

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.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
April 15, 2015	Reserved	Reserved by mitre
May 18, 2015	Published	Published (CNA: mitre)
October 8, 2026	KEV ADDED	ADDED TO KEV — CVE-2015-3306. Remediation due October 11, 2026.
October 12, 2026	DUE DATE PASSED	DUE DATE PASSED — CVE-2015-3306. CISA remediation deadline was October 11, 2026; still in catalog.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-284

References (15)

http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157053.html [Broken Link, Mailing List, Third Party Advisory]
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157054.html [Broken Link, Mailing List, Third Party Advisory]
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157581.html [Broken Link, Mailing List, Third Party Advisory]
http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html [Mailing List, Third Party Advisory]
http://packetstormsecurity.com/files/131505/ProFTPd-1.3.5-File-Copy.html [Third Party Advisory, VDB Entry]
http://packetstormsecurity.com/files/131555/ProFTPd-1.3.5-Remote-Command-Execution.html [Third Party Advisory, VDB Entry]
http://packetstormsecurity.com/files/131567/ProFTPd-CPFR-CPTO-Proof-Of-Concept.html [Exploit, VDB Entry]
http://packetstormsecurity.com/files/132218/ProFTPD-1.3.5-Mod_Copy-Command-Execution.html [Exploit, VDB Entry]
http://packetstormsecurity.com/files/162777/ProFTPd-1.3.5-Remote-Command-Execution.html [Exploit, VDB Entry]
http://www.debian.org/security/2015/dsa-3263 [Mailing List, Third Party Advisory]
http://www.rapid7.com/db/modules/exploit/unix/ftp/proftpd_modcopy_exec [Third Party Advisory]
http://www.securityfocus.com/bid/74238 [Third Party Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-3306 [US Government Resource]
https://www.exploit-db.com/exploits/36742/ [Exploit]
https://www.exploit-db.com/exploits/36803/ [Exploit]

Authoritative record: CVE-2015-3306 at cve.org

Weaknesses: CWE-284

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2015-3306 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.