CVE-2020-14154

Name: CVE-2020-14154
Creator: NVD / NIST
Published: 2020-06-15T17:15:10.717+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 1.06%

Last modified Jun 17, 2026

CVE-2020-14154 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Mutt before 1.14.3 proceeds with a connection even if, in response to a GnuTLS certificate prompt, the user rejects an expired intermediate certificate.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

Description

Mutt before 1.14.3 proceeds with a connection even if, in response to a GnuTLS certificate prompt, the user rejects an expired intermediate certificate.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

1.06%

60.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mutt	Mutt	< 1.14.3
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10
Canonical	Ubuntu Linux	20.04

References

http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200608/000022.htmlMailing List, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.htmlBroken Link
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.htmlBroken Link
http://www.mutt.orgProduct, Vendor Advisory
https://bugs.gentoo.org/728300Third Party Advisory
https://security.gentoo.org/glsa/202007-57Third Party Advisory
https://usn.ubuntu.com/4401-1/Third Party Advisory
http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200608/000022.htmlMailing List, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.htmlBroken Link
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.htmlBroken Link
http://www.mutt.orgProduct, Vendor Advisory
https://bugs.gentoo.org/728300Third Party Advisory
https://security.gentoo.org/glsa/202007-57Third Party Advisory
https://usn.ubuntu.com/4401-1/Third Party Advisory

Timeline

Published: Jun 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-14154?

Mutt before 1.14.3 proceeds with a connection even if, in response to a GnuTLS certificate prompt, the user rejects an expired intermediate certificate.

How severe is CVE-2020-14154?

CVE-2020-14154 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14154?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14154?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST