Medium severity6.0NVD Advisory· Published Jun 13, 2017· Updated Jun 17, 2026
CVE-2017-6666
CVE-2017-6666
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9cpe:2.3:o:cisco:ios_xr:6.0.0:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:cisco:ios_xr:6.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.0_base:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.2.1:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- www.securityfocus.com/bid/98987nvdThird Party AdvisoryVDB Entry
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607-ncsnvdMitigationVendor Advisory
- www.securitytracker.com/id/1038630nvd
News mentions
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