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CVE-2018-14355

19
FAUCET Score

CVE-2018-14355 is a directory traversal vulnerability (CWE-22) affecting Mutt versions prior to 1.10.1 and NeoMutt before 2018-07-16, specifically in how imap/util.c handles ".." in mailbox names. This vulnerability has a CVSS score of 5.3 (Medium), indicating a low-complexity network attack that could lead to a loss of confidentiality. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage, suggesting a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
< 1.10.1CPE matchmatch criteria
cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
< 20180716CPE matchmatch criteria
cpe:2.3:a:neomutt:neomutt:*:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.32%
Probability of exploitation in next 30 days
EPSS Percentile
87.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0332 is in the 83rd percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mutt-5:1.5.21-29.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mutt

Vendor Advisories (1)

redhatCVE-2018-14355Moderate

mutt: IMAP header caching path traversal vulnerability

Jul 16, 2018

References

github.com / neomutt/neomutt/commit/57971dba06346b2d7179294f4528b8d4427a7c5d
PatchThird Party Advisory
gitlab.com / muttmua/mutt/commit/31eef6c766f47df8281942d19f76e35f475c781d
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/08/msg00001.html
Mailing ListThird Party Advisory
neomutt.org / 2018/07/16/release
Release NotesVendor Advisory
security.gentoo.org / glsa/201810-07
Third Party Advisory
usn.ubuntu.com / 3719-3
Third Party Advisory
debian.org / security/2018/dsa-4277
Third Party Advisory
mutt.org / news.html
Release NotesVendor Advisory