CVE-2020-3331: Cisco RV110W Wireless-N VPN Firewall Firmware

Critical severity, CVSS 9.8. EPSS: 41.7% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco RV110W Wireless-N VPN Firewall and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability is due to improper validation of user-supplied input data by the web-based management interface. An attacker could exploit this vulnerability by sending crafted requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the root user.

Affected products

• Cisco RV110W Wireless-N VPN Firewall Firmware: before 1.2.2.8 (fixed in 1.2.2.8)
• Cisco RV215W Wireless-N VPN Router Firmware: before 1.3.1.7 (fixed in 1.3.1.7)

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