UpHeron
All vulnerabilities

Servers and applications

CVE-2020-28007

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.

Severity
High 7.8
Published
6 May 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.94.2
Sources
NVD

Affected software

SoftwareAffected versions
EximServers and applications · cpe:a:exim:exim
  • From 4.00 before 4.94.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-28007
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-28007