Is CVE-2014-9116 in the CISA KEV catalog?

No. CVE-2014-9116 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-9116?

CVE-2014-9116 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2014-9116?

CVE-2014-9116 has an EPSS score of 9.69% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-9116?

Upgrade mutt on debian 11 to 1.5.23-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2014-9116

MEDIUMEPSS 95th pctl

5.0

CVSS v2

NVD

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.

CWE-119Buffer Overflow

How to fix

Remediation Available

muttDebian

Fixed in:1.5.23-2CVE-2014-9116

muttUbuntu

Fixed in:1.5.21-6.4ubuntu2.1USN-2440-1

mutt-patchedUbuntu

Fixed in:1.5.21-6.4ubuntu2.1USN-2440-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

9.69%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Exploit3

Vendor Advisory1

dev.mutt.org

Third-Party Advisory6

Other references3

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.