What’s Vulnerable › Vulnerabilities

CVE-2018-14355

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-17 · updated 2026-06-17
• Weakness: CWE-22

Description

An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap/util.c mishandles ".." directory traversal in a mailbox name.

Affected products

• Canonical Ubuntu Linux: 16.04
• Debian Linux: 8.0, 9.0
• mutt: before 1.10.1 — fixed in 1.10.1
• Neomutt: before 20180716 — fixed in 20180716

How to fix

Upgrade to a fixed version: mutt 1.10.1; Neomutt 20180716. Check the vendor advisory for mitigations.

References

• http://www.mutt.org/news.html
• https://github.com/neomutt/neomutt/commit/57971dba06346b2d7179294f4528b8d4427a7c5d
• https://gitlab.com/muttmua/mutt/commit/31eef6c766f47df8281942d19f76e35f475c781d
• https://lists.debian.org/debian-lts-announce/2018/08/msg00001.html
• https://neomutt.org/2018/07/16/release
• https://security.gentoo.org/glsa/201810-07
• https://usn.ubuntu.com/3719-3/
• https://www.debian.org/security/2018/dsa-4277
• http://www.mutt.org/news.html
• https://github.com/neomutt/neomutt/commit/57971dba06346b2d7179294f4528b8d4427a7c5d
• https://gitlab.com/muttmua/mutt/commit/31eef6c766f47df8281942d19f76e35f475c781d
• https://lists.debian.org/debian-lts-announce/2018/08/msg00001.html

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