CVE-2016-6420
UnknownEPSS 1.84%
Last modified
CVE-2016-6420 is a vulnerability of currently unknown severity. Cisco FireSIGHT System Software 4.10.3 through 5.4.0 in Firepower Management Center allows remote authenticated users to bypass authorization checks and gain privileges via a crafted HTTP request, aka Bug ID CSCur25467.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.
Description
Cisco FireSIGHT System Software 4.10.3 through 5.4.0 in Firepower Management Center allows remote authenticated users to bypass authorization checks and gain privileges via a crafted HTTP request, aka Bug ID CSCur25467.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firesight System Software | 4.10.3 |
| Cisco | Firesight System Software | 5.2.0 |
| Cisco | Firesight System Software | 5.3.0 |
| Cisco | Firesight System Software | 5.3.1 |
| Cisco | Firesight System Software | 5.4.0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-6420?
Cisco FireSIGHT System Software 4.10.3 through 5.4.0 in Firepower Management Center allows remote authenticated users to bypass authorization checks and gain privileges via a crafted HTTP request, aka Bug ID CSCur25467.
How severe is CVE-2016-6420?
Severity scoring for CVE-2016-6420 is pending analysis. The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6420?
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-2016-6420?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST