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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…
Critical9.8EPSS 49.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 49.9% · top 1.1% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (6)
- http://fortiguard.com/advisory/FG-IR-16-023 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://musalbas.com/2016/08/16/equation-group-firewall-operations-catalogue.html (opens in a new tab)x_refsource_MISCx_transferred
- 1036643 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://packetstormsecurity.com/files/138387/EGREGIOUSBLUNDER-Fortigate-Remote-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- 40276 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 92523 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .