CVE-2023-20202

MEDIUM

Cisco IOS XE - DoS

Title source: llm
STIX 2.1

Description

A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of network requests to an affected device. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to reload, resulting in a DoS condition.

Scores

CVSS v3 6.1
EPSS 0.0008
EPSS Percentile 23.0%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-789
Status published
Products (12)
cisco/ios_xe 17.9.1
cisco/ios_xe 17.9.1a
cisco/ios_xe 17.9.1w
cisco/ios_xe 17.9.1x
cisco/ios_xe 17.9.1x1
cisco/ios_xe 17.9.1y
cisco/ios_xe 17.9.2
cisco/ios_xe 17.9.2a
cisco/ios_xe 17.9.2b
cisco/ios_xe 17.10.1
... and 2 more
Published Sep 27, 2023
Tracked Since Feb 18, 2026