CVE-2021-38371

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

Description

The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.

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-2021-38371

OS impact

OSVersionStatusFixed in
arch archaffected
debian debianbookwormfixed4.95~RC2-1
debian debianbullseyefixed4.94.2-7+deb11u4
debian debianforkyfixed4.95~RC2-1
debian debiansidfixed4.95~RC2-1
debian debiantrixiefixed4.95~RC2-1

References

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