CVE-2022-20856

A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a logic error and improper management of resources related to the handling of CAPWAP Mobility messages. An attacker could exploit this vulnerability by sending crafted CAPWAP Mobility packets to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device. This would cause the device to reload, resulting in a DoS condition.

• Cisco Catalyst 9800

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  Cisco
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• Cisco Catalyst 9800 40

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  Cisco
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• Cisco Catalyst 9800 80

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  Cisco
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• Cisco Catalyst 9800 Cl

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  Cisco
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• Cisco Catalyst 9800 L

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  Cisco
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• Cisco Catalyst 9800 L C

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  Cisco
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• Cisco Catalyst 9800 L F

  HW
  Cisco
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• Cisco IOS XE

  OS
  Cisco
  17.3.4c