CVE-2016-6401

Name: CVE-2016-6401
Creator: NVD / NIST
Published: 2016-09-17T02:59:01.617+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.80%

Last modified Jun 17, 2026

CVE-2016-6401 is a vulnerability of currently unknown severity. Cisco Carrier Routing System (CRS) 5.1 and 5.1.4, as used in CRS Carrier Grade Services for CRS-1 and CRS-3 devices, allows remote attackers to cause a denial of service (line-card reload) via crafted IPv6-over-MPLS packets, aka Bug ID CSCva32494.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

Cisco Carrier Routing System (CRS) 5.1 and 5.1.4, as used in CRS Carrier Grade Services for CRS-1 and CRS-3 devices, allows remote attackers to cause a denial of service (line-card reload) via crafted IPv6-over-MPLS packets, aka Bug ID CSCva32494.

Metrics

EPSS Probability

0.80%

51.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Carrier Routing System	5.1.4
Cisco	Carrier Routing System	5.1_base

References

Timeline

Published: Sep 17, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6401?

How severe is CVE-2016-6401?

Severity scoring for CVE-2016-6401 is pending analysis. The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6401?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-6401?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST