Initial Publication Date: 2020/09/22 8:45AM PST

CVE Identifier: CVE-2020-25604

AWS is aware of Xen Security Advisory 336 released by the Xen Security team on September 22nd 2020. Nitro based instances are not affected. Under rare circumstances, a guest may be able to cause a Xen host to reboot. This poses no risk to confidentiality or integrity of customer data, and no customer action is required. We are actively updating the fleet, and will update this security bulletin when complete.