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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (24.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Cisco iOS Xr — versions 6.0.0, 6.0.1, 6.0_base
- Cisco Network Convergence System 5500 Series Routers — versions Cisco Network Convergence System 5500 Series Routers
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607… (Mitigation, Vendor Advisory)
- www.securityfocus.com/bid/98987 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1038630 (vdb-entry)
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.