Buffer overflow in Coreftp Core FTP

CVE-2014-4643

Multiple heap-based buffer overflows in the client in Core FTP LE 2.2 build 1798 allow remote FTP servers to cause a denial of service (application crash) and possibly execute arbitrary code via a long string in a reply to a (1) USER, (2) PASS, (3) PASV, (4) SYST, (5) PWD, or (6) CDUP command.

Vulnerability class: Buffer Overflow

Published 2014-06-25 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.088 (95.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.088 · newest: 0.088 · change: 0.000

Affected products

Coreftp Core FTP — versions 2.2

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

secunia.com/advisories/58818 (third-party-advisory)
osvdb.org/show/osvdb/108051 (vdb-entry)
packetstormsecurity.com/files/127075/Core-FTP-LE-2.2-Heap-Overflow.html (Exploit)
www.exploit-db.com/exploits/33713 (Exploit, exploit)