CVE-2005-3945: The SynAttackProtect protection in Microsoft Windows 2003 before SP1 and Windows 2000 before SP4 with Updat...

Security readout for executives and security teams

This is an old denial-of-service issue in Microsoft’s SYN flood protection for outdated Windows versions. A remote network flood could consume CPU by forcing inefficient hash lookups. The sources do not indicate data compromise, privilege escalation, or active exploitation. Exposure is most plausible on legacy Windows 2000 or Windows Server 2003 systems that are reachable over untrusted networks. Modern Windows versions are not identified as affected in the provided sources. Treat as legacy-risk cleanup. It is urgent only if affected systems still exist and are reachable from untrusted networks; otherwise it is mainly an asset hygiene finding. Mitigation focus: Identify any remaining Windows 2000 or Windows Server 2003 systems.; Verify Windows Server 2003 systems are at SP1 or later.; Verify Windows 2000 systems have SP4 with Update Roll-up where applicable..

Prepared

Jun 29, 2026, 16:18 UTC (UTC+00:00)

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