CVE-2026-107570

Use of Out-of-range Pointer Offset in mutt

Published Oct 8, 2026 CVSS 3.1 · 2.5 Low EPSS < 1% KEV · Not listed
Description
heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write when email is used as a template.

Remediation

Vendor Solution

Upgrade to 2.4.3

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4897-1 mutt security update
Debian DSA Debian DSA DSA-6563-1 mutt security update
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Mutt
Mutt mutt
Vendors & Products Mutt
Mutt mutt
Type Values Removed Values Added
Description heap OOB write in convert_file_from_to() via a crafted Content-Type header allows attacker to OOB write when email is used as a template.
Title Use of Out-of-range Pointer Offset in mutt
Weaknesses CWE-823
References
Metrics cvssV3_1

{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitLab
Published
Updated
Oct 9, 2026, 11:07 PM
Reserved
Oct 8, 2026, 10:51 AM
Status
Deferred
Published
Oct 8, 2026, 12:17 PM
Modified
Oct 10, 2026, 12:17 AM
Severity
Low
Public date
Oct 8, 2026, 11:33 AM