Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2017-6666
- 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:6.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:6.1.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-6666
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-6666
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
1.9
|
LOW | AV:L/AC:M/Au:N/C:N/I:N/A:P |
3.4
|
2.9
|
NIST | |
6.0
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
1.5
|
4.0
|
NIST |
References for CVE-2017-6666
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607-ncs
Cisco Network Convergence System 5500 Series Routers Local Denial of Service VulnerabilityMitigation;Vendor Advisory
-
http://www.securitytracker.com/id/1038630
Cisco IOS XR on Network Convergence System 5500 Series Routers Lets Local Users Cause Denial of Service Conditions - SecurityTracker
-
http://www.securityfocus.com/bid/98987
Cisco IOS XR Software CVE-2017-6666 Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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