CVE-2026-43859 — LOW (3.7) — White Hats Nepal

Vulnerability Description

mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.

CVSS Score

3.7

LOW

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-158

References

https://github.com/muttmua/mutt/commit/834c5a2ed0479e51e8662a31caed129f136f4805

FAQ

What is CVE-2026-43859?

CVE-2026-43859 is a vulnerability with a CVSS score of 3.7 (LOW). mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP auth_cram MD5 digest.

How severe is CVE-2026-43859?

CVE-2026-43859 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-43859?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.