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HomeCVEsCVE-2016-6909

CVE-2016-6909

Published: January 27, 2026
Last updated:11 hours ago (January 27, 2026)
Exploit: YesZero-day: YesPatch: YesTrend: Neutral
TL;DR
Updated January 27, 2026

CVE-2016-6909 is a low severity vulnerability with a CVSS score of 0.0. Exploits are available; patches have been released and should be applied urgently. This is classified as a zero-day vulnerability.

Key Points
  • 1Low severity (CVSS 0.0/10)
  • 2EPSS: 72.00% - very high likelihood of exploitation
  • 3Public exploits are available
  • 4Vendor patches are available
  • 5Affects products from: Fortinet
Severity Scores
CVSS v30.0
CVSS v210.0
Priority Score0.0
EPSS Score72.0
None
Exploitation LikelihoodCritical
72.00%EPSS

Very high probability of exploitation in the next 30 days

Immediate patching required
72.00%
EPSS
0.0
CVSS
Yes
Exploit
Yes
Patch
High Priority
high EPSS • exploit exists

EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.

Description

Buffer overflow in the Cookie parser in Fortinet FortiOS 4.x before 4.1.11, 4.2.x before 4.2.13, and 4.3.x before 4.3.9 and FortiSwitch before 3.4.3 allows remote attackers to execute arbitrary code via a crafted HTTP request, aka EGREGIOUSBLUNDER.

CVSS v3 Breakdown
Attack Vector:-
Attack Complexity:-
Privileges Required:-
User Interaction:-
Scope:-
Confidentiality:-
Integrity:-
Availability:-
Exploit References
Exploit-db.comPacketstormsecurity.com[email protected]
Patch References
[email protected]Zeroday CZ
Trend Analysis
Neutral
Vulnerable Products
VendorProduct
FortinetFortios
FortinetFortiswitch
Advisories
GitHub AdvisoryNVD
Cite This Page
APA Format
Strobes VI. (2026). CVE-2016-6909 - CVE Details and Analysis. Strobes VI. Retrieved January 28, 2026, from https://vi.strobes.co/cve/CVE-2016-6909
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