CVE-2026-43860 | BDVDB-2026-330401 Detail

muttmutt

Description#

mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact none. Attack vector: network.

No public exploit known

3.7 Low

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 5.5.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Not classified

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

3.7 Low

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).