CVE-2016-6399
UnknownEPSS 1.94%
Last modified
CVE-2016-6399 is a vulnerability of currently unknown severity. Cisco ACE30 Application Control Engine Module through A5 3.3 and ACE 4700 Application Control Engine appliances through A5 3.3 allow remote attackers to cause a denial of service (device reload) via crafted (1) SSL or (2) TLS packets, aka Bug ID CSCvb16317.. EPSS estimates a 1.94% chance of exploitation in the next 30 days.
Description
Cisco ACE30 Application Control Engine Module through A5 3.3 and ACE 4700 Application Control Engine appliances through A5 3.3 allow remote attackers to cause a denial of service (device reload) via crafted (1) SSL or (2) TLS packets, aka Bug ID CSCvb16317.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ace Application Control Engine Module A1 | 7a |
| Cisco | Ace Application Control Engine Module A1 | 7b |
| Cisco | Ace Application Control Engine Module A1 | 8.0 |
| Cisco | Ace Application Control Engine Module A1 | 8.0a |
| Cisco | Ace Application Control Engine Module A3 | 1.0 |
| Cisco | Ace Application Control Engine Module A3 | 2.0 |
| Cisco | Ace Application Control Engine Module A3 | 2.2 |
| Cisco | Ace Application Control Engine Module A3 | 2.3 |
| Cisco | Ace Application Control Engine Module A3 | 2.4 |
| Cisco | Ace Application Control Engine Module A3 | 2.5 |
| Cisco | Ace Application Control Engine Module A3 | 2.6 |
| Cisco | Ace Application Control Engine Module A3 | 2.7 |
| Cisco | Ace Application Control Engine Module A4 | 1.0 |
| Cisco | Ace Application Control Engine Module A4 | 1.1 |
| Cisco | Ace Application Control Engine Module A4 | 2.0 |
| Cisco | Ace Application Control Engine Module A4 | 2.1a |
| Cisco | Ace Application Control Engine Module A4 | 2.2 |
| Cisco | Ace Application Control Engine Module A4 | 2.3 |
| Cisco | Ace Application Control Engine Module A5 | 1.0 |
| Cisco | Ace Application Control Engine Module A5 | 1.1 |
| Cisco | Ace Application Control Engine Module A5 | 1.2 |
| Cisco | Ace Application Control Engine Module A5 | 2.0 |
| Cisco | Ace Application Control Engine Module A5 | 2.1 |
| Cisco | Ace Application Control Engine Module A5 | 2.1e |
| Cisco | Ace Application Control Engine Module A5 | 3.0 |
| Cisco | Ace Application Control Engine Module A5 | 3.1a |
| Cisco | Ace Application Control Engine Module A5 | 3.1b |
| Cisco | Ace Application Control Engine Module A5 | 3.2 |
| Cisco | Ace Application Control Engine Module A5 | 3.3 |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(1.0\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(1.1\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(1.2\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(2.0\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(2.1\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(2.1e\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5\(3.0\) |
| Cisco | Ace 4700 Series Application Control Engine Appliance | a5_base |
| Cisco | Ace 4700 Series Application Control Engine Appliance A1 | 7 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A1 | 7a |
| Cisco | Ace 4700 Series Application Control Engine Appliance A1 | 7b |
| Cisco | Ace 4700 Series Application Control Engine Appliance A1 | 8.0 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A1 | 8.0a |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 1.0 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.0 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.2 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.3 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.4 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.5 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.6 |
| Cisco | Ace 4700 Series Application Control Engine Appliance A3 | 2.7 |
Showing 50 of 60 affected configurations. See NVD for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-6399?
Cisco ACE30 Application Control Engine Module through A5 3.3 and ACE 4700 Application Control Engine appliances through A5 3.3 allow remote attackers to cause a denial of service (device reload) via crafted (1) SSL or (2) TLS packets, aka Bug ID CSCvb16317.
How severe is CVE-2016-6399?
Severity scoring for CVE-2016-6399 is pending analysis. The EPSS model estimates a 1.94% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6399?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2016-6399?
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