CVE-2021-1287: Cisco RV132W Firmware

High severity, CVSS 7.2. EPSS: 2.3% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco RV132W ADSL2+ Wireless-N VPN Routers and Cisco RV134W VDSL2 Wireless-AC VPN Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device or cause the device to restart unexpectedly. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition on the affected device.

Affected products

• Cisco RV132W Firmware: before 1.0.1.15 (fixed in 1.0.1.15)
• Cisco RV134W Firmware: before 1.0.1.21 (fixed in 1.0.1.21)

Published 2021-03-18. Last modified 2026-06-17.