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    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.

    Published:Sep 30, 2022
    Last Modified:Nov 21, 2024
    EPS:Sep 30, 2022
    EPSS Score:0.00389
    CVSS Score:8.6

    Affected Products

    Vendor
    Cisco
    Product
    Catalyst 9800
    Vendor
    Cisco
    Product
    Catalyst 9800-40
    Vendor
    Cisco
    Product
    Catalyst 9800-80
    Vendor
    Cisco
    Product
    Catalyst 9800-cl
    Vendor
    Cisco
    Product
    Catalyst 9800-l
    Vendor
    Cisco
    Product
    Catalyst 9800-l-c
    Vendor
    Cisco
    Product
    Catalyst 9800-l-f
    Vendor
    Cisco
    Product
    Ios Xe

    Exploits

    No exploit reference

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High