#VU73983 Input validation error in Cisco IOS and Cisco IOS XE - CVE-2023-20080

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Main Vulnerability Database Vulnerabilities #VU73983

#VU73983 Input validation error in Cisco IOS and Cisco IOS XE - CVE-2023-20080

Published: March 23, 2023


Vulnerability identifier: #VU73983
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-20080
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS
Cisco IOS XE
Software vendor:
Cisco Systems, Inc

Description

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 version 6 (DHCPv6) relay and server features. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links