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CVE-2016-6384

20
FAUCET Score

CVE-2016-6384 is a denial-of-service vulnerability affecting Cisco IOS and IOS XE devices, specifically versions 12.2 through 12.4, 15.0 through 15.6, and 3.1 through 3.17, and 16.2 respectively. This high-severity vulnerability (CVSS 7.5) allows unauthenticated remote attackers to trigger a device reload by sending specially crafted H.323 messages. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 12.2, <= 12.4CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
>= 15.0, <= 15.6CPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
>= 3.1, <= 3.17CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
16.2CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.19%
Probability of exploitation in next 30 days
EPSS Percentile
89.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0419 is in the 82nd percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-h323
Vendor Advisory
securityfocus.com / bid/93209
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036914
Third Party AdvisoryVDB Entry