CVE-2022-20753: Cisco RV340 Firmware

High severity, CVSS 7.2. EPSS: 2.2% chance of exploitation in the next 30 days.

A vulnerability in web-based management interface of Cisco Small Business RV340 and RV345 Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to an affected device. A successful exploit could allow the attacker to execute remote code on the affected device. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.

Affected products

• Cisco RV340 Firmware: before 1.0.03.27 (fixed in 1.0.03.27)
• Cisco RV340W Firmware: before 1.0.03.27 (fixed in 1.0.03.27)
• Cisco RV345 Firmware: before 1.0.03.27 (fixed in 1.0.03.27)
• Cisco RV345P Firmware: before 1.0.03.27 (fixed in 1.0.03.27)

Published 2022-05-04. Last modified 2026-06-17.