CVE-2020-3330: Cisco RV110W Wireless-N VPN Firewall Firmware

Critical severity, CVSS 9.8. EPSS: 3.4% chance of exploitation in the next 30 days.

A vulnerability in the Telnet service of Cisco Small Business RV110W Wireless-N VPN Firewall Routers could allow an unauthenticated, remote attacker to take full control of the device with a high-privileged account. The vulnerability exists because a system account has a default and static password. An attacker could exploit this vulnerability by using this default account to connect to the affected system. A successful exploit could allow the attacker to gain full control of an affected device.

Affected products

• Cisco RV110W Wireless-N VPN Firewall Firmware: before 1.2.2.8 (fixed in 1.2.2.8)

Published 2020-07-16. Last modified 2026-06-17.