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CVE-2018-14357

30
FAUCET Score

CVE-2018-14357 is a critical vulnerability affecting Mutt (before 1.10.1) and NeoMutt (before 2018-07-16) email clients, allowing remote IMAP servers to execute arbitrary commands. With a CVSS score of 9.8, it presents a high-impact, network-exploitable risk, enabling full compromise of confidentiality, integrity, and availability without user interaction. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.10.1CPE matchmatch criteria
cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
< 20180716CPE matchmatch criteria
cpe:2.3:a:neomutt:neomutt:*:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.95%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0495 is in the 85th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mutt-5:1.5.20-9.20091214hg736b6a.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mutt-5:1.5.21-28.el7_5
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: mutt

Vendor Advisories (1)

redhatCVE-2018-14357Important

mutt: Remote Code Execution via backquote characters

Jul 8, 2018

References

access.redhat.com / errata/RHSA-2018:2526
Third Party Advisory
github.com / neomutt/neomutt/commit/e52393740334443ae0206cab2d7caef381646725
PatchThird Party Advisory
gitlab.com / muttmua/mutt/commit/185152818541f5cdc059cbff3f3e8b654fc27c1d
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 / 3719-1
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