CVE-2016-6424 Denial of service in n/a
Remote attackers can cause a denial of service by sending crafted DHCP packets, affecting Cisco ASA software users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-6424?
CVE-2016-6424 is a medium-severity denial of service vulnerability in Cisco Adaptive Security Appliance Software, published on 6 Oct 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The DHCP Relay implementation in Cisco Adaptive Security Appliance (ASA) Software 8.4.7.29 and 9.1.7.4 allows remote attackers to cause a denial of service (interface wedge) via a crafted rate of DHCP packet transmission, aka Bug ID CSCuy66942.
Weakness: CWE-399
Which versions are affected by CVE-2016-6424?
It affects 1 product.
Products include Cisco Adaptive Security Appliance Software.
How do I fix CVE-2016-6424?
No fix has been published for CVE-2016-6424 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-6424 being exploited?
There is no known exploitation of CVE-2016-6424 in the wild and no public exploit code.
Other vulnerabilities in Cisco Adaptive Security Appliance Software
- CVE-2025-20333 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow
- CVE-2016-6366 Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow
- CVE-2026-20349 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection
- CVE-2024-20353 Cisco ASA and FTD Denial of Service
- CVE-2016-6367 Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution
All Cisco Adaptive Security Appliance Software vulnerabilities
Sources
Also known as GHSA-mrrg-x8wc-mhcg.