Vulnerability in Cisco iOS Xr
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.
EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Ios_xr — versions 6.0.0, 6.0.1, 6.0_base
- N/a Cisco Network Convergence System 5500 Series Routers — versions Cisco Network Convergence System 5500 Series Routers
References
- psirt@cisco.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- psirt@cisco.com (vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2017-6666?
- CVE-2017-6666 is a medium-severity vulnerability in Cisco iOS Xr. CVSS score: 6.0/10. Published 2017-06-13.
- How severe is CVE-2017-6666?
- Medium severity. CVSS v3 base score is 6.0 out of 10.