CVE-2016-6909
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 cod...
Affects 2 products across 1 vendor.
Parent class for buffer-related vulnerabilities where operations exceed buffer boundaries.
Show all 12
Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.
A critical buffer overflow vulnerability exists in the Cookie parser of Fortinet FortiOS versions 4.x before 4.1.11, 4.2.x before 4.2.13, and 4.3.x before 4.3.9, as well as FortiSwitch before 3.4.3. This flaw allows remote attackers to execute arbitrary code via a specially crafted HTTP request, posing a significant security risk.
BSID: BS-2016-GLOBAL-157214-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH
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| CVE ID | CVE-2016-6909 |
|---|---|
| BSID | BS-2016-GLOBAL-157214-C BreachSpider Global ID |
| CVSS Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2016-08-24 |
| Last Modified | 2026-06-17 |
| ICS Relevance | 70% |
| Weakness (CWE) | |
| Domains | |
| Source | NVD |
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.
Source: NIST NVD / MITRE CVE Database
The vulnerability is triggered by a buffer overflow in the Cookie parser component. An attacker can exploit this by sending a malicious HTTP request with a specially crafted Cookie header that exceeds the buffer's allocated memory space, leading to potential code execution.
Exploitation Likelihood: CRITICAL
| Vendor | Product | Affected Versions |
|---|---|---|
| Fortinet | Fortios | ≥ 4.1.0, < 4.1.11 ≥ 4.2.0, < 4.2.13 ≥ 4.3.0, < 4.3.9 |
| Fortinet | Fortiswitch | ≤ 3.4.2 |
No official vendor advisory link on record. See the CVE record →
| CISA known-exploited | Not in KEV catalog |
|---|---|
| Public Exploit | ⚠ Available — Reference |
| PoC Code | Not confirmed |
AI Enrichment Record — provenance & audit hash
| Model | /workspace/models/qwen2.5-coder-32b-instruct-bf16 |
|---|---|
| Confidence | HIGH |
| Enriched At | 2026-05-24 |
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