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Fencer Vulns
critical 10.0

CVE-2007-5467 in the critical feed json

Integer overflow in eXtremail 2.1.1 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code,…

published 2007-10-15 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-5442

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.5%
EPSS 13.5% chance of exploitation in 30 days, percentile 96%
public exploits
4
Exploit-DB

Summary

Integer overflow in eXtremail 2.1.1 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a long USER command containing "%s" sequences to the pop3 port (110/tcp), which are expanded to "%%s" before being used in the memmove function, possibly due to an incomplete fix for CVE-2001-1078.

Timeline

  1. First public exploit (EDB-4535)
  2. Published

Exploit prediction

13.52% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-4535 eXtremail 2.1.1 - Remote Heap Overflow (PoC) dos, 2007-10-15
  • EDB-4534 eXtremail 2.1.1 - PLAIN Authentication Remote Stack Overflow remote, 2007-10-15
  • EDB-4533 eXtremail 2.1.1 - 'LOGIN' Remote Stack Overflow remote, 2007-10-15
  • EDB-4532 eXtremail 2.1.1 - 'memmove()' Remote Denial of Service dos, 2007-10-15

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

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.