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Fencer Vulns
high 7.5

CVE-2004-2677 json

Format string vulnerability in qwik-smtpd.c in QwikMail SMTP (qwik-smtpd) 0.3 and earlier allows remote attackers to execute arbitrary code…

published 2004-12-31 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-2667

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.5%
EPSS 6.5% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

Timeline

  1. First public exploit (EDB-620)
  2. Published

Exploit prediction

6.48% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-620 Qwik SMTP 0.3 - Format String remote, 2004-11-09
  • securityfocus.com http://www.securityfocus.com/bid/11572 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.