CVE-2020-28007
exim4 - security update
7.8
HIGH
CVSS 3.1
EPSS 0.08%
Description
Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the log directory (owned by a non-root user), a symlink or hard link attack allows overwriting critical root-owned files anywhere on the filesystem.
How to fix CVE-2020-28007
To remediate CVE-2020-28007, upgrade the affected package to a fixed version below.
- Debian/exim4—upgrade to 4.94.2-1 or later
- —upgrade to 4.89-2+deb9u8 or later
- —upgrade to 4.92-8+deb10u6 or later
Is CVE-2020-28007 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 4.94.2-1
- from 0, < 4.89-2+deb9u8
- from 0, < 4.92-8+deb10u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |