Boorder Gateway Protocol (BGP) implementations from multiple vendors including Juniper may not properly handle specially crafted BGP UPDATE messages. These vulnerabilities could allow an unauthenticated, remote attacker to cause a denial of service. Disrupting BGP communication could lead to routing instability. The risk is LOW. A remote attacker could cause a denial of servcie by injecting a specially crafted BGP UPDATE message into a legitimate BGP session. An attacker with a configured BGP session could attack targets several BGP hops away, or an attacker could spoof TCP traffic.