CVE-2020-28020
CRITICAL9.8EPSS 26.6%Published: 5/6/2021Modified: 4/28/2026
Also known as:DEBIAN-CVE-2020-28020
Description
Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.
Affected packages (1)
- Debian/exim4from 0, < 4.92~RC5-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |