CVE-2020-28020
9.8
CRITICAL
CVSS 3.1
EPSS 26.6%
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.
How to fix CVE-2020-28020
To remediate CVE-2020-28020, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.92~RC5-1 or later
Is CVE-2020-28020 being exploited?
Moderate — EPSS is 26.6%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 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 |