Original release date: December 9, 2022Cisco released a security advisory for a vulnerability affecting IP Phone 7800 and 8800 Series. A remote attacker could exploit this vulnerability to cause a denial-of-service condition. For more information, see the Cisco Security Advisories page. CISA encourages users and administrators to review Cisco IP Phone 7800 and 8800 Series Cisco Discovery Protocol Stack Overflow Vulnerability and apply the necessary updates. This product is provided subject to this Notification and this Privacy & Use policy.