CVE-2026-20086: Improper Handling of Missing Values

A vulnerability in the processing of Control and Provisioning of Wireless Access Points CAPWAP packets of Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This...

CVE-2025-20190: Improper Access Control

A vulnerability in the lobby ambassador web interface of Cisco IOS XE Wireless Controller Software could allow an authenticated, remote attacker to remove arbitrary users that are defined on an affected device. This vulnerability is due to insufficient access control of actions executed by lobby...

CVE-2025-20202: Buffer Access with Incorrect Length Value

A vulnerability in Cisco IOS XE Wireless Controller Software could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to insufficient input validation of access point AP Cisco Discovery Protocol CDP neighbor...

CVE-2022-20847: Undefined Security Weakness

A vulnerability in the DHCP processing functionality of 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. This vulnerability is due to the improper processing of DHCP messages. An...

CVE-2022-20856: Improper Control of a Resource Through its Lifetime

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...

CVE-2022-20810: Exposure of Sensitive Information Through Data Queries

A vulnerability in the Simple Network Management Protocol SNMP of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an authenticated, remote attacker to access sensitive information. This vulnerability is due to insufficient restrictions that allow a sensitive...

CVE-2022-20684: Integer Overflow or Wraparound

A vulnerability in Simple Network Management Protocol SNMP trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause an affected device to unexpectedly reload, resulting in a denial of...

CVE-2022-20682: Unchecked Return Value to NULL Pointer Dereference

A vulnerability in the Control and Provisioning of Wireless Access Points CAPWAP protocol processing of 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...

PT-2021-7111

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family affected versions not specified Cisco Catalyst 9800 and 9800-CL for Cloud affected versions not specified Description The issue is related to inadequate input validation of...

CVE-2021-1611: Undefined Security Weakness

A vulnerability in Ethernet over GRE EoGRE packet processing of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9800 Family Wireless Controller, Embedded Wireless Controller, and Embedded Wireless on Catalyst 9000 Series Switches could allow an unauthenticated, remote attacker to...

CVE-2021-34767: Always-Incorrect Control Flow Implementation

A vulnerability in IPv6 traffic processing of Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a Layer 2 L2 loop in a configured VLAN, resulting in a denial of service DoS condition for that...

PT-2021-4846

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers affected versions not specified Description A logic error in the processing of specific link-local IPv6 traffic could allow an unauthenticated,...

PT-2021-5174

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Wireless Controller Software versions affected versions not specified Description A vulnerability in Ethernet over GRE EoGRE packet processing could allow an unauthenticated, remote attacker to cause a denial of service DoS...

CVE-2021-1373: Buffer Over-read

A vulnerability in the Control and Provisioning of Wireless Access Points CAPWAP protocol processing of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service DoS condition of a...

CVE-2020-3428: Improper Input Validation

A vulnerability in the WLAN Local Profiling feature of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to incorrect parsing of...

PT-2020-4186

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family affected versions not specified Description: A vulnerability in the WPA2 and WPA3 security implementation could allow an unauthenticated, adjacent attacker to cause ...

CVE-2020-3429: Improper Input Validation

A vulnerability in the WPA2 and WPA3 security implementation of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause denial of service DoS condition on an affected device. The vulnerability is due to incorrect pack...

CVE-2020-3390: Improper Input Validation

A vulnerability in Simple Network Management Protocol SNMP trap generation for wireless clients of the Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause the device to unexpectedly reload, causing a denial of...

CVE-2020-3418: Improper Access Control

A vulnerability in Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9800 Series Routers could allow an unauthenticated, adjacent attacker to send ICMPv6 traffic prior to the client being placed into RUN state. The vulnerability is due to an incomplete access control list ACL being...