Vulnerability in Transsoft Broker FTP Server

CVE-2001-0688

Broker FTP Server 5.9.5.0 allows a remote attacker to cause a denial of service by repeatedly issuing an invalid CD or CWD ("CD . .") command.

Published 2001-09-20 · last modified 2026-06-16.

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: 0.051 (92.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000

Affected products

Transsoft Broker FTP Server — versions 3.0_build_1, 4.0, 4.7.5.0

References

www.securityfocus.com/bid/2851 (Exploit, vdb-entry, Vendor Advisory)
www.securityfocus.com/archive/1/190032 (Vendor Advisory, mailing-list, Exploit)