CVE-2014-9116

CVE-2014-9116 is a medium-severity vulnerability in Mutt with a CVSS 2.0 base score of 5.0. 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-119.

Key facts

Description

The write_one_header function in mutt 1.5.23 does not properly handle newline characters at the beginning of a header, which allows remote attackers to cause a denial of service (crash) via a header with an empty body, which triggers a heap-based buffer overflow in the mutt_substrdup function.

Frequently asked questions

What is CVE-2014-9116?
The write_one_header function in mutt 1.5.23 does not properly handle newline characters at the beginning of a header, which allows remote attackers to cause a denial of service (crash) via a header with an empty body, which triggers a heap-based buffer overflow in the mutt_substrdup function.
How severe is CVE-2014-9116?
CVE-2014-9116 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-9116 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-9116?
CVE-2014-9116 primarily affects Mutt. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-9116?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-9116 published?
CVE-2014-9116 was published on 2014-12-02 and last updated on 2026-06-17.

References

Affected products (5)

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