CVE-2019-1652: Cisco Small Business Routers Improper Input Validation Vulnerability

High severity, CVSS 7.2. Actively exploited: in CISA KEV since 2022-03-03. EPSS: 95.9% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an authenticated, remote attacker with administrative privileges on an affected device to execute arbitrary commands. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious HTTP POST requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux shell as root. Cisco has released firmware updates that address this vulnerability.

Affected products

• Cisco RV320 Firmware: from 1.4.2.15, before 1.4.2.22 (fixed in 1.4.2.22)
• Cisco RV325 Firmware: from 1.4.2.15, before 1.4.2.22 (fixed in 1.4.2.22)

Published 2019-01-24. Last modified 2026-06-17.