CVE-2020-28018 is a critical Use After Free vulnerability affecting Exim mail transfer agent versions prior to 4.94.2, specifically in builds utilizing OpenSSL. This flaw allows unauthenticated remote attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability, as reflected by its CVSS score of 9.8. While no public exploit code or active exploitation has been confirmed, its high EPSS score and media coverage indicate significant potential risk and community awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.90, < 4.94.2CPE matchmatch criteria | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* |
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.
Remediation records are not available for this CVE.