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CVE-2016-6424

21
FAUCET Score

CVE-2016-6424 describes a denial-of-service vulnerability in the DHCP Relay implementation of Cisco Adaptive Security Appliance (ASA) Software versions 8.4.7.29 and 9.1.7.4. An unauthenticated, adjacent attacker can exploit this by sending a crafted rate of DHCP packets, leading to an interface wedge on the affected ASA device. This vulnerability has a CVSSv3 score of 6.5 (Medium), indicating a high impact on availability with low attack complexity and no user interaction required. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
8.4.7.29CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:8.4.7.29:*:*:*:*:*:*:*
9.1\(7\)4CPE matchmatch criteria
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.1\(7\)4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 85th percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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-20161005-asa-dhcp
Vendor Advisory
securityfocus.com / bid/93408
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036961
Third Party AdvisoryVDB Entry