Buffer overflow in Cisco Systems, Inc products - CVE-2022-20842
Published: August 4, 2022
Vulnerability identifier: #VU66105
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20842
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the web-based management interface. A remote attacker can send a specially crafted HTTP request, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Cisco RV340 Dual WAN Gigabit VPN Router
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
Cisco RV345 Dual WAN Gigabit VPN Router
Cisco RV345P Dual WAN Gigabit VPN Router
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
Cisco RV345 Dual WAN Gigabit VPN Router
Cisco RV345P Dual WAN Gigabit VPN Router
How to mitigate CVE-2022-20842
Install updates from vendor's website.
Cisco RV340 Dual WAN Gigabit VPN Router - update to 1.0.03.28
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.28
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.28
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.28
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.28
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.28
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.28