CVE-2022-23943 is a critical out-of-bounds write vulnerability in Apache HTTP Server's mod_sed module, affecting versions 2.4.52 and prior, as well as products from Debian, Fedora, and Oracle. With a CVSS score of 9.8, it allows unauthenticated attackers to remotely overwrite heap memory, leading to potential complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered significant community discussion and media coverage, indicating high awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.4.0, < 2.4.53CPE matchmatch criteria | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
36CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
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
No social media mentions found for this CVE.
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.
Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project
Mar 2, 2026Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project
Dec 10, 2025httpd: mod_sed: Read/write beyond bounds
Mar 14, 2022mod_sed: Read/write beyond bounds
Mar 8, 2022Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project