CVE-2017-6666

A vulnerability in the forwarding component of Cisco IOS XR Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an authenticated, local attacker to cause the router to stop forwarding data traffic across Traffic Engineering (TE) tunnels, resulting in a denial of service (DoS) condition. More Information: CSCvd16665. Known Affected Releases: 6.2.11.BASE. Known Fixed Releases: 6.1.3 6.1.2 6.3.1.8i.BASE 6.2.11.8i.BASE 6.2.2.9i.BASE 6.1.32.11i.BASE 6.1.31.10i.BASE 6.1.4.3i.BASE.

• http://www.securityfocus.com/bid/98987Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038630
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607-ncsMitigation, Vendor Advisory
• http://www.securityfocus.com/bid/98987Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038630
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607-ncsMitigation, Vendor Advisory

Published

Jun 13, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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