In neomutt and mutt, the To and Cc email headers are not validated by cryptographic signing which allows an attacker that intercepts a message to change their value and include himself as a one of the recipients to compromise message confidentiality.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-43420 In neomutt and mutt, the To and Cc email headers are not validated by cryptographic signing which allows an attacker that intercepts a message to change their value and include himself as a one of the recipients to compromise message confidentiality.
Ubuntu USN Ubuntu USN USN-7204-1 NeoMutt vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00035}

epss

{'score': 0.00036}


Wed, 16 Jul 2025 12:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'}


Sat, 05 Jul 2025 05:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10

Thu, 14 Nov 2024 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Mutt
Mutt mutt
Neomutt
Neomutt neomutt
CPEs cpe:2.3:a:mutt:mutt:-:*:*:*:*:*:*:*
cpe:2.3:a:neomutt:neomutt:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Vendors & Products Mutt
Mutt mutt
Neomutt
Neomutt neomutt

Tue, 12 Nov 2024 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 12 Nov 2024 02:15:00 +0000

Type Values Removed Values Added
Title mutt: neomutt: To and Cc email header fields are not protected by cryptographic signing Mutt: neomutt: to and cc email header fields are not protected by cryptographic signing
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References

Tue, 12 Nov 2024 01:45:00 +0000

Type Values Removed Values Added
Description In neomutt and mutt, the To and Cc email headers are not validated by cryptographic signing which allows an attacker that intercepts a message to change their value and include himself as a one of the recipients to compromise message confidentiality.
Title mutt: neomutt: To and Cc email header fields are not protected by cryptographic signing
Weaknesses CWE-347
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

threat_severity

Moderate


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-20T19:20:09.077Z

Reserved: 2024-10-14T17:56:03.767Z

Link: CVE-2024-49393

cve-icon Vulnrichment

Updated: 2024-11-12T14:25:42.939Z

cve-icon NVD

Status : Modified

Published: 2024-11-12T02:15:18.443

Modified: 2025-07-16T12:15:22.977

Link: CVE-2024-49393

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-11-11T00:00:00Z

Links: CVE-2024-49393 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses