CVE-2004-0641: Thomson Speedtouch

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

Thomson SpeedTouch 510 ADSL Router with firmware GV8BAA3.270, and possibly earlier versions, generates predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.

Affected products

• Thomson Speedtouch: version 510_adsl_router only

Published 2004-08-05. Last modified 2026-06-16.