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mutt CVE-2026-43864

| EUVD-2026-26904 LOW
NULL Pointer Dereference (CWE-476)
2026-05-04 mitre
2.5
CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

7
Patch available
May 04, 2026 - 07:31 EUVD
Source Code Evidence Fetched
May 04, 2026 - 07:31 vuln.today
Analysis Generated
May 04, 2026 - 07:31 vuln.today
Patch released
May 04, 2026 - 07:16 nvd
Patch available
EUVD ID Assigned
May 04, 2026 - 07:00 euvd
EUVD-2026-26904
Analysis Generated
May 04, 2026 - 07:00 vuln.today
CVE Published
May 04, 2026 - 06:10 nvd
LOW 2.5

DescriptionNVD

mutt before 2.3.2 has a show_sig_summary NULL pointer dereference.

AnalysisAI

Mutt mail client before version 2.3.2 crashes due to a null pointer dereference in the show_sig_summary function when processing GPG signatures, causing denial of service. The vulnerability requires local access and user interaction to trigger (viewing a malicious email with a crafted signature), resulting in application termination with minimal real-world impact. …

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CVE-2026-43864 vulnerability details – vuln.today

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