Users of Cisco’s ASA firewall and Firepower Threat Defence devices have been warned to reboot their devices urgently or they will stop working.
A software defect means the devices will stop passing traffic after 213 days of use. Customers can determine if the bug has been triggered by using the command ‘show asp drop’ in the Cisco iOS. If the message “punt rate limit exceeded” is displayed, it means the bug has been triggered.
Cisco said it would publish updates to address the problem in the next few weeks.
In the meantime, it advised customers to work around the issue by rebooting their appliances so the uptime counter resets.