CVE-2013-6693

Name: CVE-2013-6693
Creator: NVD / NIST
Published: 2013-11-22T01:55:04.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.13%

Last modified Jun 17, 2026

CVE-2013-6693 is a vulnerability of currently unknown severity. The MLDP implementation in Cisco IOS 15.3(3)S and earlier on 7600 routers, when many VRFs are configured, allows remote attackers to cause a denial of service (chunk corruption and device reload) by establishing many multicast flows, aka Bug ID CSCue22345.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

The MLDP implementation in Cisco IOS 15.3(3)S and earlier on 7600 routers, when many VRFs are configured, allows remote attackers to cause a denial of service (chunk corruption and device reload) by establishing many multicast flows, aka Bug ID CSCue22345.

Metrics

EPSS Probability

1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Cisco	Ios	<= 15.3\(3\)s
Cisco	Ios	15.3\(2\)s
Cisco	Ios	15.3s
Cisco	7600 Router	All versions

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6693Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=31861Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6693Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=31861Vendor Advisory

Timeline

Published: Nov 22, 2013
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-6693?

How severe is CVE-2013-6693?

Severity scoring for CVE-2013-6693 is pending analysis. The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2013-6693?

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-2013-6693?

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

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Source: NVD / NIST