How severe is CVE-2011-1429?

CVE-2011-1429 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2011-1429 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1429?

CVE-2011-1429 affects Mutt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1429?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-1429 published?

CVE-2011-1429 was published on 2011-03-16 and last updated on 2026-06-16.

CVE-2011-1429

CVE-2011-1429 is a medium-severity vulnerability in Mutt with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mutt
Published: 2011-03-16
Last modified: 2026-06-16

Description

Mutt does not verify that the smtps server hostname matches the domain name of the subject of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL SMTP server via an arbitrary certificate, a different vulnerability than CVE-2009-3766.

Frequently asked questions

What is CVE-2011-1429?: Mutt does not verify that the smtps server hostname matches the domain name of the subject of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL SMTP server via an arbitrary certificate, a different vulnerability than CVE-2009-3766.
How severe is CVE-2011-1429?: CVE-2011-1429 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2011-1429 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1429?: CVE-2011-1429 affects Mutt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1429?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1429 published?: CVE-2011-1429 was published on 2011-03-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*

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