CVE-2020-3358

HIGH

Cisco RV340 RV340W RV345 RV345P Firmware < 1.0.03.18 - Unauthenticated Denial of Service via SSL VPN HTTP Request

Title source: llm
STIX 2.1

Description

A vulnerability in the Secure Sockets Layer (SSL) VPN feature for Cisco Small Business RV VPN Routers could allow an unauthenticated, remote attacker to cause the device to unexpectedly restart, causing a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request over an SSL connection to the targeted device. A successful exploit could allow the attacker to cause a reload, resulting in a DoS condition.

References (1)

Core 1
Core References

Scores

CVSS v3 8.6
EPSS 0.0020
EPSS Percentile 41.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (4)
cisco/rv340_dual_wan_gigabit_vpn_router_firmware < 1.0.03.18
cisco/rv340w_dual_wan_gigabit_wireless-ac_vpn_router_firmware < 1.0.03.18
cisco/rv345_dual_wan_gigabit_vpn_router_firmware < 1.0.03.18
cisco/rv345p_dual_wan_gigabit_poe_vpn_router_firmware < 1.0.03.18
Published Jul 16, 2020
Tracked Since Feb 18, 2026