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Fencer Vulns
medium 5.3

CVE-2024-49394 json

Mutt: neomutt: in-reply-to email header field it not protected by cryptograpic signing

published 2024-11-12 23 mo ago modified 2026-11-06 2 d ago also EUVD-2024-43421

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.

Patch / fix

  • neomutt Debian 14, Debian 13 20241002+dfsg-1

debian advisories DEBIAN-CVE-2024-49394

  • neomutt Ubuntu Pro 20.04 LTS 20191207+dfsg.1-1.1ubuntu0.1~esm1
  • neomutt Ubuntu Pro 22.04 LTS 20211029+dfsg1-1ubuntu0.1~esm1
  • neomutt Ubuntu Pro 24.04 LTS 20231103+dfsg1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2024-49394

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • neomutt openSUSE Tumbleweed 20241114-1.1

opensuse advisories openSUSE-SU-2024:14527-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-49394 updated cvss 5.3

mutt: neomutt: In-Reply-To email header field it not protected by cryptograpic signing

  • Red Hat Enterprise Linux 7 mutt
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 mutt Red Hat Enterprise Linux 9 mutt
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-347 Improper Verification of Cryptographic Signature

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.