PT-2026-36777 · Mutt · Mutt

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CVE-2026-43864

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Published

2026-05-04

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Updated

2026-06-22

CVSS v3.1

2.5

Low

VectorAV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
Name of the Vulnerable Software and Affected Versions mutt versions prior to 2.3.2
Description A NULL pointer dereference exists in the show sig summary function. A NULL pointer dereference occurs when a program attempts to read or write to a memory location using a pointer that is null, typically leading to a program crash.
Recommendations Update to version 2.3.2 or later. As a temporary workaround, consider disabling the show sig summary function until the update is applied.

Exploit

Fix

NULL Pointer Dereference

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Weakness Enumeration

Related Identifiers

AZL-85599
CVE-2026-43864
OESA-2026-2200
OPENSUSE-SU-2026:21016-1
SUSE-SU-2026:22340-1
SUSE-SU-2026:2300-1
SUSE-SU-2026:2301-1

Affected Products

Mutt