CVE-2023-20202 — MEDIUM (6.1)

Vulnerability 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.

CVSS Score

6.1

MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cisco	Ios Xe	17.9.1
Cisco	Catalyst 9105I	-
Cisco	Catalyst 9105W	-
Cisco	Catalyst 9115	-
Cisco	Catalyst 9120	-
Cisco	Catalyst 9124D	-
Cisco	Catalyst 9124E	-
Cisco	Catalyst 9124I	-
Cisco	Catalyst 9130	-
Cisco	Catalyst 9136	-
Cisco	Catalyst 9162	-
Cisco	Catalyst 9164	-
Cisco	Catalyst 9166	-
Cisco	Catalyst 9166D1	-
Cisco	Catalyst 9800-40	-
Cisco	Catalyst 9800-80	-
Cisco	Catalyst 9800-Cl	-
Cisco	Catalyst 9800-L	-
Cisco	Catalyst Iw6300	-
Cisco	Esw6300	-

Related Weaknesses (CWE)

CWE-789

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciVendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciVendor Advisory

FAQ

What is CVE-2023-20202?

CVE-2023-20202 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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)...

How severe is CVE-2023-20202?

CVE-2023-20202 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-20202?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Catalyst 9105I, Cisco Catalyst 9105W, Cisco Catalyst 9115, Cisco Catalyst 9120.