CVE-2004-0244: Cisco 6000, 6500, and 7600 series systems with Multilayer Switch Feature Card 2 (MSFC2) and a FlexWAN or OS...

Security readout for executives and security teams

This issue affects older Cisco 6000, 6500, and 7600 systems with MSFC2 plus FlexWAN or OSM modules. A local user can send malformed Layer 2 traffic that makes the device hang or reset, causing outage risk. The bundle provides no CVSS score and no KEV listing. Exposure is most likely in legacy campus, data center, or service-provider networks still running Cisco 6000, 6500, or 7600 systems with MSFC2 and FlexWAN or OSM modules. Treat this as a legacy infrastructure availability risk. It is not KEV-listed in the bundle, but affected core switching or routing equipment could create business disruption if still deployed. Mitigation focus: Inventory Cisco 6000, 6500, and 7600 chassis for MSFC2 with FlexWAN or OSM modules.; Review Cisco advisory cisco-sa-20040203-cat6k for fixed software or vendor-recommended actions.; Prioritize replacement or isolation of unsupported legacy platforms..

Prepared

Jun 30, 2026, 06:56 UTC (UTC+00:00)

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