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HIGH · 8.6

CVE-2021-34769

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...

Vulnerability 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.

CVSS Score

8.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
CiscoIos Xe3.15.1xbs
CiscoCatalyst 9800-
CiscoCatalyst 9800-40-
CiscoCatalyst 9800-40 Wireless Controller-
CiscoCatalyst 9800-80-
CiscoCatalyst 9800-80 Wireless Controller-
CiscoCatalyst 9800-Cl-
CiscoCatalyst 9800-L-
CiscoCatalyst 9800-L-C-
CiscoCatalyst 9800-L-F-
CiscoCatalyst 9800 Embedded Wireless Controller-

Related Weaknesses (CWE)

CWE-415

References

FAQ

What is CVE-2021-34769?

CVE-2021-34769 is a vulnerability with a CVSS score of 8.6 (HIGH). 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...

How severe is CVE-2021-34769?

CVE-2021-34769 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34769?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Catalyst 9800, Cisco Catalyst 9800-40, Cisco Catalyst 9800-40 Wireless Controller, Cisco Catalyst 9800-80.