CVE-2005-3654: Bluecoat Webproxy

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

Blue Coat Systems Inc. WinProxy before 6.1a allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large number of packets with 0xFF characters to the Telnet port (TCP 23), which corrupts the heap.

Affected products

• Bluecoat Webproxy: version 4.0 only; version 5.0 only; version 5.1 only; version 5.2 only; version 6.0 only

Published 2005-12-31. Last modified 2026-06-16.