CVE-2018-14353
An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap_quote_string in imap/util.c has an integer underflow.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap_quote_string in imap/util.c has an integer underflow.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.70% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-191
- Affected
- mutt/mutt · neomutt/neomutt · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
EPSS 3.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.mutt.org/news.htmlRelease Notes, Vendor Advisory
- https://github.com/neomutt/neomutt/commit/65d64a5b60a4a3883f2cd799d92c6091d8854f23Patch, Third Party Advisory
- https://gitlab.com/muttmua/mutt/commit/e0131852c6059107939893016c8ff56b6e42865dPatch, 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/65d64a5b60a4a3883f2cd799d92c6091d8854f23Patch, Third Party Advisory
- https://gitlab.com/muttmua/mutt/commit/e0131852c6059107939893016c8ff56b6e42865dPatch, 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.