CVE-2017-6729: Cisco Asr 5000 Software

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

A vulnerability in the Border Gateway Protocol (BGP) processing functionality of the Cisco StarOS operating system for Cisco ASR 5000 Series Routers and Cisco Virtualized Packet Core (VPC) Software could allow an unauthenticated, remote attacker to cause the BGP process on an affected system to reload, resulting in a denial of service (DoS) condition. This vulnerability affects the following products if they are running the Cisco StarOS operating system and BGP is enabled for the system: Cisco ASR 5000 Series Routers and Cisco Virtualized Packet Core Software. More Information: CSCvc44968. Known Affected Releases: 16.4.1 19.1.0 21.1.0 21.1.M0.65824. Known Fixed Releases: 21.3.A0.65902 21.2.A0.65905 21.1.b0.66164 21.1.V0.66014 21.1.R0.65898 21.1.M0.65894 21.1.0.66030 21.1.0.

Affected products

• Cisco Asr 5000 Software: version 16.4.1 only; version 16.5.0 only; version 16.5.2 only; version 17.2.0 only; version 17.2.0.59184 only; version 17.3.0 only; …

Published 2017-07-10. Last modified 2026-06-17.