CVE-2005-3675: TCP

High severity, CVSS 7.8. EPSS: 2.3% chance of exploitation in the next 30 days.

The Transmission Control Protocol (TCP) allows remote attackers to cause a denial of service (bandwidth consumption) by sending ACK messages for packets that have not yet been received (optimistic ACKs), which can cause the sender to increase its transmission rate until it fills available bandwidth.

Affected products

• TCP TCP: any version

Published 2005-11-18. Last modified 2026-06-16.