CVE-2018-14350

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 INTERNALDATE field.

Published: 2018-07-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-14350 is rated High Risk (70/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.30%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-14350

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-15 3.07% 3.30% +0.24%
2 2026-02-24 3.76% 3.07% -0.69%
3 2026-02-23 3.76%

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-14350

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2018-14350

OS Trackers for CVE-2018-14350

vendor priority summary link
debian not yet assigned CVE-2018-14350 not yet assigned priority: Debian including 2 source packages (mutt, neomutt), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2018-14350
gentoo normal CVE-2018-14350: 1 GLSA(s) (201810-07), 2 atom(s) (mail-client/neomutt, net-client/mutt); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-14350
redhat low https://access.redhat.com/security/cve/CVE-2018-14350
suse medium CVE-2018-14350 severity moderate: SUSE including 23 source package names (mutt-1.10.1-3.3.4, mutt-1.10.1-55.6.1, …), 63 product×package rows across 36 product lines (Image SLES12-SP5-Azure-SAP-BYOS, Image SLES12-SP5-Azure-SAP-On-Demand, … (36 product lines)): Fixed 63. https://www.suse.com/security/cve/CVE-2018-14350/
ubuntu medium CVE-2018-14350 medium priority: Ubuntu including 2 source packages (mutt, neomutt), 36 status rows across 18 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): released 19, not-affected 12, DNE 3, ignored 2. https://ubuntu.com/security/CVE-2018-14350

Affected software / configurations for CVE-2018-14350

Vendor Product Version Raw CPE
mutt mutt < 1.10.1 cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
neomutt neomutt < 20180716 cpe:2.3:a:neomutt:neomutt:*:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

References for CVE-2018-14350

URL Tags
http://www.mutt.org/news.html Release Notes Vendor Advisory
http://www.securityfocus.com/bid/104931 Third Party Advisory VDB Entry
https://github.com/neomutt/neomutt/commit/1b0f0d0988e6df4e32e9f4bf8780846ea95d4485 Patch Third Party Advisory
https://gitlab.com/muttmua/mutt/commit/3287534daa3beac68e2e83ca4b4fe8a3148ff870 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00001.html Mailing List Third Party Advisory
https://neomutt.org/2018/07/16/release Release Notes Vendor Advisory
https://security.gentoo.org/glsa/201810-07 Third Party Advisory
https://usn.ubuntu.com/3719-1/ Third Party Advisory
https://usn.ubuntu.com/3719-2/ Third Party Advisory
https://usn.ubuntu.com/3719-3/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4277 Third Party Advisory
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