CVE-2021-38371

high

Description

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

References

https://www.exim.org/static/doc/security/CVE-2021-38371.txt

https://www.exim.org

https://nostarttls.secvuln.info

https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html

Details

Source: Mitre, NVD

Published: 2021-08-10

Updated: 2025-11-03

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High

EPSS

EPSS: 0.02036