Cisco customers are strongly encouraged to stay up-to-date with the latest software upgrades to ensure the security and functionality of their devices. By regularly checking the advisories for Cisco products on the Cisco Security Advisories page, customers can determine their exposure to vulnerabilities and find a comprehensive upgrade solution.
It is essential for customers to verify that their devices have enough memory and confirm that their current hardware and software configurations are compatible with the new release before proceeding with an upgrade. If there is any uncertainty regarding compatibility, customers are recommended to reach out to the Cisco Technical Assistance Center (TAC) or their maintenance providers for assistance.
The process of upgrading an Access Point (AP) involves upgrading the wireless controller to which the AP is connected. Customers are advised to refer to the tables provided in the advisory to identify the appropriate fixed software release for their specific situation.
For APs managed by Wireless LAN Controller or Mobility Express, customers using Cisco Wireless LAN Controller Software Releases 8.9 and earlier should migrate to a fixed release. Those on Release 8.10 are advised to upgrade to version 8.10.190.0 to address the vulnerability.
For APs managed by Catalyst 9800 Wireless Controller or Embedded Wireless Controller, customers on Software Releases 17.2 and earlier should migrate to a fixed release. Subsequent releases such as 17.3.8, 17.6.6, and 17.9.4 provide fixes for the vulnerability, while Release 17.12 is confirmed to be not vulnerable.
The advisory also includes information for Business Wireless AP Software, with specific recommendations for the Cisco Business 100 and 200 Series AP Software Releases as well as the Cisco Business 150 Series AP Software Releases.
It is important to note that the Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information provided in the advisory. Customers are advised to follow the guidance outlined in the tables to ensure the security of their Cisco devices.
In conclusion, staying informed about software upgrades and following the recommended upgrade paths outlined in this advisory is crucial for maintaining the security and functionality of Cisco products. By taking proactive steps to address vulnerabilities, customers can enhance the overall cybersecurity posture of their network infrastructure.