CVE-2020-28896

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-287CWE-755

Affected software

No affected versions have been published.

Timeline

Published
Nov 23, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

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CVE-2020-28896: Medium severity, CVSS 5.3 | Vulnix