Stack-based buffer overflow in Cisco Systems, Inc products - CVE-2021-1609
Published: August 5, 2021
Vulnerability identifier: #VU55602
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-2021-1609
CWE-ID: CWE-121
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 unauthenticated attacker can send a specially crafted HTTP request, trigger stack-based buffer overflow 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-2021-1609
Install updates from vendor's website.
Cisco RV340 Dual WAN Gigabit VPN Router - update to 1.0.03.22
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.22
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.22
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.22
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.22
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.22
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.22