CVE-2016-6909 is a critical buffer overflow vulnerability, dubbed "EGREGIOUSBLUNDER," affecting the Cookie parser in Fortinet FortiOS versions 4.x, 4.2.x, and 4.3.x, as well as FortiSwitch before 3.4.3. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending a specially crafted HTTP request. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. While not listed on the KEV catalog, exploit code is publicly available on ExploitDB, and it has garnered significant community discussion, indicating potential for exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.1.0, < 4.1.11CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | ||
>= 4.2.0, < 4.2.13CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | ||
>= 4.3.0, < 4.3.9CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | ||
<= 3.4.2CPE matchmatch criteria | cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.