CVE-2021-20120: Commscope Arris Surfboard SB8200 Firmware

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

The administration web interface for the Arris Surfboard SB8200 lacks any protections against cross-site request forgery attacks. This means that an attacker could make configuration changes (such as changing the administrative password) without the consent of the user.

Affected products

• Commscope Arris Surfboard SB8200 Firmware: version ab01.02.053.01_112320_193.0a.nsh only

Published 2021-10-21. Last modified 2026-06-17.