CVE-2021-34768

Summary

CVE	CVE-2021-34768
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2021-09-23 03:15:00 UTC
Updated	2023-11-07 03:36:00 UTC
Description	Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit the vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.

Risk And Classification

Problem Types: CWE-415

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Hardware	Cisco	Catalyst 9800	-	All	All	All
Hardware	Cisco	Catalyst 9800-40	-	All	All	All
Hardware	Cisco	Catalyst 9800-40 Wireless Controller	-	All	All	All
Hardware	Cisco	Catalyst 9800-80	-	All	All	All
Hardware	Cisco	Catalyst 9800-80 Wireless Controller	-	All	All	All
Hardware	Cisco	Catalyst 9800-cl	-	All	All	All
Hardware	Cisco	Catalyst 9800-l	-	All	All	All
Hardware	Cisco	Catalyst 9800-l-c	-	All	All	All
Hardware	Cisco	Catalyst 9800-l-f	-	All	All	All
Hardware	Cisco	Catalyst 9800 Embedded Wireless Controller	-	All	All	All
Operating System	Cisco	Ios Xe	17.3.1	All	All	All
Operating System	Cisco	Ios Xe	17.3.2	All	All	All
Operating System	Cisco	Ios Xe	17.3.2a	All	All	All
Operating System	Cisco	Ios Xe	17.4.1	All	All	All
Operating System	Cisco	Ios Xe	17.5.1	All	All	All
Operating System	Cisco	Ios Xe	3.15.1xbs	All	All	All
Operating System	Cisco	Ios Xe	3.15.2xbs	All	All	All

References

Reference	Source	Link	Tags
Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities	CISCO	tools.cisco.com
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Legacy QID Mappings

317049 Cisco Internetwork Operating System (IOS) XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service (DoS) Vulnerability (cisco-sa-ewlc-capwap-dos-gmNjdKOY)