CVE-2023-42789 is a critical out-of-bounds write vulnerability affecting multiple versions of Fortinet FortiOS and FortiProxy. This flaw allows an unauthenticated attacker to execute arbitrary code or commands remotely by sending specially crafted HTTP requests. With a CVSS score of 9.8 (Critical), the vulnerability is easily exploitable over the network with no user interaction required, leading to complete compromise of confidentiality, integrity, and availability. While there is no public exploit code or evidence of active exploitation (not in KEV), the high EPSS score and significant community discussion indicate a strong potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.0.0, <= 2.0.13CPE matchmatch criteria | cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* | ||
>= 7.0.0, <= 7.0.12CPE matchmatch criteria | cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* | ||
>= 7.2.0, <= 7.2.6CPE matchmatch criteria | cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* | ||
7.4.0CPE matchmatch criteria | cpe:2.3:a:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:* | ||
>= 6.2.0, <= 6.2.15CPE matchmatch criteria | cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/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.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.