CVE-2026-43859
LOWmutt < 2.3.2 - Improper Neutralization of Null Byte in IMAP CRAM-MD5 Authentication
Title source: llmDescription
mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.
References (1)
Core 1
Scores
CVSS v3
3.7
EPSS
0.0016
EPSS Percentile
5.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-158
Status
published
Products (1)
mutt/mutt
< 2.3.2
Published
May 04, 2026
Tracked Since
May 04, 2026