CVE-2006-5196: The HTTP interface in the Motorola SURFboard SB4200 Cable Modem allows remote attackers to cause a denial o...

Security readout for executives and security teams

CVE-2006-5196 is a denial-of-service issue in the HTTP interface of the Motorola SURFboard SB4200 cable modem. A remote attacker can crash the device with a malformed request. The public sources do not show active exploitation, CVSS scoring, or a named vendor patch. Exposure is most likely where legacy Motorola SURFboard SB4200 modems remain deployed and their HTTP interface is reachable from untrusted networks. Business exposure should be treated as limited but operationally relevant because a crash can interrupt connectivity. Prioritize replacement or isolation if SB4200 devices support business connectivity. This is not documented as a data breach risk, but it can disrupt network availability and involves very old hardware with incomplete remediation evidence. Mitigation focus: Identify and retire remaining Motorola SURFboard SB4200 devices where practical.; Restrict HTTP management access to trusted local administrative networks only.; Check Motorola or ISP guidance for firmware or replacement direction..

Prepared

Jun 29, 2026, 10:06 UTC (UTC+00:00)

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