CVE-2001-1104: SonicWall Soho Firmware

High severity, CVSS 7.5. EPSS: 7% chance of exploitation in the next 30 days.

SonicWALL SOHO uses easily predictable TCP sequence numbers, which allows remote attackers to spoof or hijack sessions.

Affected products

• SonicWall Soho Firmware: version 4.0.0 only; version 5.0.0 only; version 5.1.5.0 only

Published 2001-07-25. Last modified 2026-06-16.