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CVE-2017-6731 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-iosxr	CVE	Vendor Advisory
http://www.securitytracker.com/id/1038820	CVE	Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-iosxr	[email protected]	Vendor Advisory
http://www.securitytracker.com/id/1038820	[email protected]	Third Party AdvisoryVDB Entry

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]

Affected Products

Product	Versions
cisco ios xr	4.3.2.mcast 6.0.2.base
CPE cpe:2.3:o:cisco:ios_xr:4.3.2.mcast:::::::* cpe:2.3:o:cisco:ios_xr:6.0.2.base:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 16, 2017	Initial Analysis	[email protected]
Jul 12, 2017	CVE Modified	[email protected]