CVE-2026-43864: Null Pointer Dereference
Published May 4, 2026
·Updated
mutt before 2.3.2 has a showsigsummary NULL pointer dereference.
Affected Software
1 affected component
Mutt Mutt<2.3.2
Event History
May 4, 2026
CVE Published
via MITRE·06:10 AM
Data Sourced
via MITRE·06:10 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-43864?
CVE-2026-43864 is considered a moderate severity vulnerability due to the potential for a NULL pointer dereference leading to application crashes.
2
How do I fix CVE-2026-43864?
To fix CVE-2026-43864, upgrade to version 2.3.2 or later of Mutt, which contains the necessary patches.
3
What is the impact of CVE-2026-43864?
The impact of CVE-2026-43864 is that it can cause Mutt to crash, potentially disrupting email communication.
4
Is CVE-2026-43864 remotely exploitable?
CVE-2026-43864 is not considered remotely exploitable as it requires user interaction with the affected software.
5
What versions of Mutt are affected by CVE-2026-43864?
Versions of Mutt prior to 2.3.2 are affected by CVE-2026-43864.