CVE-2017-6731

Description

A vulnerability in Multicast Source Discovery Protocol (MSDP) ingress packet processing for Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the MSDP session to be unexpectedly reset, causing a short denial of service (DoS) condition. The MSDP session will restart within a few seconds. More Information: CSCvd94828. Known Affected Releases: 4.3.2.MCAST 6.0.2.BASE. Known Fixed Releases: 6.3.1.19i.MCAST 6.2.3.1i.MCAST 6.2.2.17i.MCAST 6.1.4.12i.MCAST.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.66% Top 30%
Vendor Advisory cisco.com
Affected: n/a Cisco IOS XR
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-iosxr vendor advisory
http://www.securitytracker.com/id/1038820 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-6731?
CVE-2017-6731 has been scored as a high severity vulnerability.
How to fix CVE-2017-6731?
To fix CVE-2017-6731, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-6731 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-6731 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-6731?
CVE-2017-6731 affects n/a Cisco IOS XR.
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