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CVE-2026-438593.7LowCWE-158

CVE-2026-43859: mutt vulnerability

mutt

Fixed in 2.3.2 · Affected: mutt before 2.3.2 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.2%probability of exploitation in the next 30 days
5th percentile
050100

Higher than 5% of scored CVEs

3.7LowCVSS 3.1
Low

DescriptionCVE.org

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

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • mutt · muttbefore 2.3.2

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
mutt
Published
May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-43859 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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