CVE-2018-14358

Name: CVE-2018-14358
Creator: NVD / NIST
Published: 2018-07-17T17:29:00.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.91%

Last modified Jun 17, 2026

CVE-2018-14358 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap/message.c has a stack-based buffer overflow for a FETCH response with a long RFC822.SIZE field.. EPSS estimates a 3.91% chance of exploitation in the next 30 days.

Description

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap/message.c has a stack-based buffer overflow for a FETCH response with a long RFC822.SIZE field.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.91%

89.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Mutt	Mutt	< 1.10.1
Neomutt	Neomutt	< 20180716
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://www.mutt.org/news.htmlRelease Notes, Vendor Advisory
https://github.com/neomutt/neomutt/commit/1b0f0d0988e6df4e32e9f4bf8780846ea95d4485Patch, Third Party Advisory
https://gitlab.com/muttmua/mutt/commit/3287534daa3beac68e2e83ca4b4fe8a3148ff870Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00001.htmlMailing List, Third Party Advisory
https://neomutt.org/2018/07/16/releaseRelease Notes, Vendor Advisory
https://security.gentoo.org/glsa/201810-07Third Party Advisory
https://usn.ubuntu.com/3719-1/Third Party Advisory
https://usn.ubuntu.com/3719-3/Third Party Advisory
https://www.debian.org/security/2018/dsa-4277Third Party Advisory
http://www.mutt.org/news.htmlRelease Notes, Vendor Advisory
https://github.com/neomutt/neomutt/commit/1b0f0d0988e6df4e32e9f4bf8780846ea95d4485Patch, Third Party Advisory
https://gitlab.com/muttmua/mutt/commit/3287534daa3beac68e2e83ca4b4fe8a3148ff870Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00001.htmlMailing List, Third Party Advisory
https://neomutt.org/2018/07/16/releaseRelease Notes, Vendor Advisory
https://security.gentoo.org/glsa/201810-07Third Party Advisory
https://usn.ubuntu.com/3719-1/Third Party Advisory
https://usn.ubuntu.com/3719-3/Third Party Advisory
https://www.debian.org/security/2018/dsa-4277Third Party Advisory

Timeline

Published: Jul 17, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-14358?

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap/message.c has a stack-based buffer overflow for a FETCH response with a long RFC822.SIZE field.

How severe is CVE-2018-14358?

CVE-2018-14358 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.91% probability of exploitation in the next 30 days.

How do I fix CVE-2018-14358?

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-2018-14358?

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

Scan your code now

Source: NVD / NIST