Buffer overflow in Youngzsoft Ccproxy

CVE-2004-2685

Buffer overflow in YoungZSoft CCProxy 6.2 and earlier allows remote attackers to execute arbitrary code via a long address in a ping (p) command to the Telnet proxy service, a different vector than CVE-2004-2416.

Vulnerability class: Buffer Overflow

Published 2004-12-31 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.107 (95.8th percentile), scored 2026-10-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.107 · newest: 0.107 · change: 0.000

Affected products

Youngzsoft Ccproxy

Weakness classification (CWE)

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

References

www.exploit-db.com/exploits/621 (exploit)
www.exploit-db.com/exploits/4360 (exploit)
secunia.com/advisories/13085 (Vendor Advisory, third-party-advisory)
www.youngzsoft.net/ccproxy/whatsnew.htm