CVE-2023-42117 is a critical remote code execution vulnerability affecting Exim mail transfer agents, specifically within the SMTP service. This flaw allows unauthenticated remote attackers to execute arbitrary code due to improper validation of user-supplied data, leading to memory corruption. With a CVSS score of 9.8 (Critical), it presents a significant risk, as exploitation requires no authentication and has a low attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered substantial community discussion and media coverage, indicating high awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.96.2CPE matchmatch criteria | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/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.