#VU81291 Input validation error in Cisco Systems, Inc products - CVE-2023-20202
Published: September 29, 2023
Vulnerability identifier: #VU81291
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-20202
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS XE
Catalyst 9800 Embedded Wireless Controller
Catalyst 9800 Series Wireless Controllers
Catalyst 9800-CL Wireless Controllers for Cloud
Embedded Wireless Controllers on Catalyst Access Points
Cisco IOS XE
Catalyst 9800 Embedded Wireless Controller
Catalyst 9800 Series Wireless Controllers
Catalyst 9800-CL Wireless Controllers for Cloud
Embedded Wireless Controllers on Catalyst Access Points
Software vendor:
Cisco Systems, Inc
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 Wireless Network Control daemon (wncd). A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.