CVE-2023-20202

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.1 MEDIUM
ADJACENT_NETWORK
HIGH
NONE
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
ciscoCNA
6.1 MEDIUM
ADJACENT_NETWORK
HIGH
NONE
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 24%
VendorProductVersion
ciscoios_xe
17.9.1
ciscoios_xe
17.9.1a:a
ciscoios_xe
17.9.1w:w
ciscoios_xe
17.9.1x:x
ciscoios_xe
17.9.1x1:x1
ciscoios_xe
17.9.1y:y
ciscoios_xe
17.9.2
ciscoios_xe
17.9.2a:a
ciscoios_xe
17.9.2b:b
ciscoios_xe
17.10.1
ciscoios_xe
17.10.1a:a
ciscoios_xe
17.10.1b:b
𝑥
= Vulnerable software versions