CVE catalog
CVE-2020-14954
NeoMutt vulnerabilities
- Severity
- High · CVSS 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.31% · Oct 27, 2026
Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mutt | sid | 2.4.1-1.1 | fixed |
| Debian | mutt | forky | 2.4.1-1 | fixed |
| Debian | mutt | trixie | 2.2.13-1+deb13u1 | fixed |
| Debian | mutt | trixie-security | 2.2.13-1+deb13u2 | fixed |
| Debian | mutt | bookworm | 2.2.12-0.1~deb12u1 | fixed |
| Debian | mutt | bookworm-security | 2.2.9-1+deb12u1 | fixed |
| Debian | neomutt | sid | 20260616+dfsg-1 | fixed |
| Debian | neomutt | forky | 20260616+dfsg-1 | fixed |
| Debian | neomutt | trixie | 20250510+dfsg-2 | fixed |
| Debian | neomutt | bookworm | 20220429+dfsg1-4.1 | fixed |
| Ubuntu | neomutt | noble | 20231103+dfsg1-1ubuntu0.1~esm1 | fixed |
| Ubuntu | mutt | 16.04 | 1.5.23-3.1ubuntu1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.23-3.1ubuntu2 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1build1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.2 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.3 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.4 | fixed |
| Ubuntu | mutt | 18.04 | 1.8.3+neomutt20170609-2build1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-2 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-3 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-4 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-5 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.2-1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.3-1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-2 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3ubuntu0.1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3ubuntu0.2 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3ubuntu0.3 | fixed |
| Ubuntu | mutt | 20.04 | 1.10.1-2.1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.12.2-1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.12.2-2 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.0-1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.2-1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.2-1ubuntu0.1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.2-1ubuntu0.2 | fixed |
| Ubuntu | mutt | 16.04 | 1.5.23-3.1ubuntu1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.23-3.1ubuntu2 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1build1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.1 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.2 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.3 | vulnerable |
| Ubuntu | mutt | 16.04 | 1.5.24-1ubuntu0.4 | fixed |
| Ubuntu | mutt | 18.04 | 1.8.3+neomutt20170609-2build1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-2 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-3 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-4 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.1-5 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.2-1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.3-1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-2 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3ubuntu0.1 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3ubuntu0.2 | vulnerable |
| Ubuntu | mutt | 18.04 | 1.9.4-3ubuntu0.3 | fixed |
| Ubuntu | neomutt | pro | 20180716+dfsg.1-1.2 | vulnerable |
| Ubuntu | neomutt | pro | 20191111+dfsg.1-1 | vulnerable |
| Ubuntu | neomutt | pro | 20191207+dfsg.1-1.1 | vulnerable |
| Ubuntu | neomutt | pro | 20191207+dfsg.1-1.1ubuntu0.1~esm1 | fixed |
| Ubuntu | mutt | 20.04 | 1.10.1-2.1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.12.2-1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.12.2-2 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.0-1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.2-1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.2-1ubuntu0.1 | vulnerable |
| Ubuntu | mutt | 20.04 | 1.13.2-1ubuntu0.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mutt | source | sid | 1.14.4-1 | not yet assigned | Not reported | Not reported |
| Debian | mutt | source | forky | 1.14.4-1 | not yet assigned | Not reported | Not reported |
| Debian | mutt | source | trixie | 1.14.4-1 | not yet assigned | Not reported | Not reported |
| Debian | mutt | source | bookworm | 1.14.4-1 | not yet assigned | Not reported | Not reported |
| Debian | neomutt | source | sid | 20200619+dfsg.1-1 | not yet assigned | Not reported | Not reported |
| Debian | neomutt | source | forky | 20200619+dfsg.1-1 | not yet assigned | Not reported | Not reported |
| Debian | neomutt | source | trixie | 20200619+dfsg.1-1 | not yet assigned | Not reported | Not reported |
| Debian | neomutt | source | bookworm | 20200619+dfsg.1-1 | not yet assigned | Not reported | Not reported |
| Ubuntu | neomutt | deb | noble | 20231103+dfsg1-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | mutt | deb | 16.04 | 1.5.24-1ubuntu0.4 | Not reported | USN-4403-1 | Not reported |
| Ubuntu | mutt | deb | 18.04 | 1.9.4-3ubuntu0.3 | Not reported | USN-4403-1 | Not reported |
| Ubuntu | mutt | deb | 20.04 | 1.13.2-1ubuntu0.2 | Not reported | USN-4403-1 | Not reported |
| Ubuntu | mutt | deb | 16.04 | 1.5.24-1ubuntu0.4 | Not reported | UBUNTU-CVE-2020-14954 | Not reported |
| Ubuntu | mutt | deb | 18.04 | 1.9.4-3ubuntu0.3 | Not reported | UBUNTU-CVE-2020-14954 | Not reported |
| Ubuntu | neomutt | deb | pro | 20191207+dfsg.1-1.1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2020-14954 | Not reported |
| Ubuntu | mutt | deb | 20.04 | 1.13.2-1ubuntu0.2 | Not reported | UBUNTU-CVE-2020-14954 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [mutt]Unknown
Details (4)
2.2.12-0.1~deb12u1· amd64 · bookwormFixed · Fixed:
1.14.4-1usn · mutt · debian · bookworm; usn · mutt · debian · 12
2.2.12-0.1~deb12u1· arm64 · bookwormFixed · Fixed:
1.14.4-1usn · mutt · debian · bookworm; usn · mutt · debian · 12
2.2.9-1+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.14.4-1usn · mutt · debian · bookworm; usn · mutt · debian · 12
2.2.9-1+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.14.4-1usn · mutt · debian · bookworm; usn · mutt · debian · 12
- [neomutt]Unknown
Details (4)
20220429+dfsg1-4.1· amd64 · bookwormFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · bookworm; usn · neomutt · debian · 12
20220429+dfsg1-4.1· arm64 · bookwormFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · bookworm; usn · neomutt · debian · 12
20250510+dfsg-2~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · bookworm; usn · neomutt · debian · 12
20250510+dfsg-2~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · bookworm; usn · neomutt · debian · 12
[Debian 13 (Trixie)]
- [mutt]Unknown
Details (3)
2.2.13-1+deb13u1· amd64 · trixieFixed · Fixed:
1.14.4-1usn · mutt · debian · 13
2.2.13-1+deb13u1· arm64 · trixieFixed · Fixed:
1.14.4-1usn · mutt · debian · 13
2.2.13-1+deb13u2· amd64 · trixie-securityFixed · Fixed:
1.14.4-1usn · mutt · debian · 13
- [neomutt]Unknown
Details (4)
20250510+dfsg-2· amd64 · trixieFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · 13
20250510+dfsg-2· arm64 · trixieFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · 13
20260105+dfsg-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · 13
20260105+dfsg-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
20200619+dfsg.1-1usn · neomutt · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2020_14414-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-14954]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-14954]
- [https://osv.dev/vulnerability/USN-4403-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-14954]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-14954.json]
- [https://ubuntu.com/security/notices/USN-7204-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2022-2243.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]