CVE-2016-6384

Name: CVE-2016-6384
Creator: NVD / NIST
Published: 2016-10-05T17:59:02.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 4.19%

Last modified Jun 17, 2026

CVE-2016-6384 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Cisco IOS 12.2 through 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.17 and 16.2 allow remote attackers to cause a denial of service (device reload) via crafted fields in an H.323 message, aka Bug ID CSCux04257.. EPSS estimates a 4.19% chance of exploitation in the next 30 days.

Description

Cisco IOS 12.2 through 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.17 and 16.2 allow remote attackers to cause a denial of service (device reload) via crafted fields in an H.323 message, aka Bug ID CSCux04257.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

4.19%

89.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Cisco	Ios	>= 12.2, <= 12.4
Cisco	Ios	>= 15.0, <= 15.6
Cisco	Ios Xe	>= 3.1, <= 3.17
Cisco	Ios Xe	16.2

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-h323Vendor Advisory
http://www.securityfocus.com/bid/93209Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036914Third Party Advisory, VDB Entry
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-h323Vendor Advisory
http://www.securityfocus.com/bid/93209Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036914Third Party Advisory, VDB Entry

Timeline

Published: Oct 5, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6384?

How severe is CVE-2016-6384?

CVE-2016-6384 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.19% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6384?

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-2016-6384?

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

Scan your code now

Source: NVD / NIST