CVE-2004-2677

CVE-2004-2677 is a high-severity vulnerability in Qwikmail Qwikmail Smtp 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

Format string vulnerability in qwik-smtpd.c in QwikMail SMTP (qwik-smtpd) 0.3 and earlier allows remote attackers to execute arbitrary code via format specifiers in the (1) clientRcptTo array, and the (2) Received and (3) messageID variables, possibly involving HELO and hostname arguments.

Frequently asked questions

What is CVE-2004-2677?
Format string vulnerability in qwik-smtpd.c in QwikMail SMTP (qwik-smtpd) 0.3 and earlier allows remote attackers to execute arbitrary code via format specifiers in the (1) clientRcptTo array, and the (2) Received and (3) messageID variables, possibly involving HELO and hostname arguments.
How severe is CVE-2004-2677?
CVE-2004-2677 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-2677 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-2677?
CVE-2004-2677 affects Qwikmail Qwikmail Smtp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-2677?
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-2004-2677 published?
CVE-2004-2677 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (1)