CVE-2007-2952: Blue Coat Systems Filter

High severity, CVSS 9.3. EPSS: 15.5% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflows in the filter service (aka k9filter.exe) in Blue Coat K9 Web Protection 3.2.44 with Filter 3.2.32 allow (1) remote attackers to execute arbitrary code via a long HTTP Referer header to the K9 Web Protection Administration interface and (2) man-in-the-middle attackers to execute arbitrary code via an HTTP response with a long HTTP version field.

Affected products

• Blue Coat Systems Filter: version 3.2.32 only
• Blue Coat Systems k9 Web Protection: version 3.2.44 only

Published 2008-08-01. Last modified 2026-06-16.