CVE-2017-6731

7.5 highEPSS 1.6%

High (7.5) in cisco ios xr. EPSS 1.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.0

7.5 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2017-07-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cisco:ios_xr

References

http://www.securitytracker.com/id/1038820
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-iosxr
http://www.securitytracker.com/id/1038820
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170705-iosxr

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