CVE-2003-0167

CVE-2003-0167 is a high-severity vulnerability in Mutt with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Multiple off-by-one buffer overflows in the IMAP capability for Mutt 1.3.28 and earlier, and Balsa 1.2.4 and earlier, allow a remote malicious IMAP server to cause a denial of service (crash) and possibly execute arbitrary code via a specially crafted mail folder, a different vulnerability than CVE-2003-0140.

Frequently asked questions

What is CVE-2003-0167?
Multiple off-by-one buffer overflows in the IMAP capability for Mutt 1.3.28 and earlier, and Balsa 1.2.4 and earlier, allow a remote malicious IMAP server to cause a denial of service (crash) and possibly execute arbitrary code via a specially crafted mail folder, a different vulnerability than CVE-2003-0140.
How severe is CVE-2003-0167?
CVE-2003-0167 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0167 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0167?
CVE-2003-0167 primarily affects Mutt. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0167?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0167 published?
CVE-2003-0167 was published on 2003-04-02 and last updated on 2026-06-16.

References

Affected products (9)

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