DEBIAN-CVE-2026-43864: mutt security update

DEBIAN-CVE-2026-43864, released May 4, 2026, fixes 1 CVE in mutt. None of them is reported as exploited. Patch Radar priority: Routine.

Routine

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

2.5

Base score, 0 to 10

Highest EPSS

0.0010

0th percentile

Fixed package versions

Product	Release	Fixed in
mutt	Debian 13.5 (trixie)	2.2.13-1+deb13u1
mutt	Debian 14	2.3.2-1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Routine	CVE-2026-43864	mutt: mutt before 2.3.2 has a show_sig_summary NULL pointer dereference.	2.5	0.0010	None reported

Also fixes CVE-2026-43864

SUSE-SU-2026:22340-1
mutt on sles 16.0
OPENSUSE-SU-2026:21016-1
mutt on opensuse-leap 16.0

Vendor advisory

https://security-tracker.debian.org/tracker/CVE-2026-43864

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