Input validation error in Cisco Systems, Inc products - CVE-2023-20081
Published: March 23, 2023
Vulnerability identifier: #VU73980
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-20081
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the IPv6 DHCP (DHCPv6) client module. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Cisco IOS
Cisco IOS XE
Cisco Firewall Threat Defense (FTD)
Cisco IOS
Cisco IOS XE
How to mitigate CVE-2023-20081
Install updates from vendor's website.