CVE-2020-28018

high
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
8.0

Description

Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-28018

OS impact

OSVersionStatusFixed in
arch archfixed4.94.2-1
debian debianbookwormfixed4.94.2-1
debian debianbullseyefixed4.94.2-1
debian debianforkyfixed4.94.2-1
debian debiansidfixed4.94.2-1
debian debiantrixiefixed4.94.2-1

References

Verify integrity in audit chain (admin only). AS-IS.