CVE-2007-1685: Buffer overflow in k9filter.exe in BlueCoat K9 Web Protection 3.2.36, and probably other versions before 3....

Security readout for executives and security teams

This is an old BlueCoat K9 Web Protection flaw where a long HTTP request to the local filtering service could crash it and may allow code execution. Business urgency depends on whether K9 remains installed and reachable on port 2372. There is no KEV listing in the supplied bundle. Exposure is likely limited to endpoints running vulnerable BlueCoat K9 Web Protection with port 2372 reachable. Confirm whether the product exists in current endpoint inventories; the supplied data does not identify affected operating systems, authentication requirements, or internet-scale prevalence. Prioritize discovery first. If K9 Web Protection is still present and reachable, treat remediation as high priority because the impact includes service crash and possible code execution, despite limited evidence about exploitation. Mitigation focus: Inventory systems for BlueCoat K9 Web Protection and k9filter.exe.; Confirm installed versions, especially 3.2.36 and versions before 3.2.44.; Check vendor or CERT guidance for fixed versions or supported remediation..

Prepared

Jun 29, 2026, 05:15 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.