7.5
CVSSv3

CVE-2021-34769

Published: 23/09/2021 Updated: 07/11/2023
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 694
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

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 malicious user 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 malicious user to cause the affected device to crash and reload, resulting in a DoS condition.

Vulnerability Trend

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cisco ios_xe 3.15.1xbs

cisco ios_xe 3.15.2xbs

cisco ios_xe 17.3.1

cisco ios_xe 17.3.2

cisco ios_xe 17.3.2a

cisco ios_xe 17.4.1

cisco ios_xe 17.5.1

Vendor Advisories

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 ...