Name: CVE-2021-38371: Improper Neutralization of Special Elements in Output Used by a Downstream Component
Creator: Rapid7
Published: 2021-08-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-38371, CWE-74, CVSS 7.5, EPSS 0.01996

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

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Amazon_linux	—	Upgrade exim	Apr 6, 2023	Aug 10, 2021
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Aug 10, 2021
Debian	—	Upgrade exim4	Jul 30, 2024	Aug 10, 2021
Exim	—	Upgrade Exim to version 4.94.2	Aug 23, 2021	Aug 10, 2021
Ubuntu	—	Upgrade eximon4Upgrade eximon4 (Ubuntu Pro)Upgrade exim4-baseUpgrade exim4-base (Ubuntu Pro)Upgrade exim4Upgrade exim4 (Ubuntu Pro)	Jul 15, 2024	Aug 10, 2021

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CVSS Details

Covered by Rapid7

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