Skip to content
Fencer Vulns
medium 5.0

CVE-2005-1807 json

The Data function in class.smtp.php in PHPMailer 1.7.2 and earlier allows remote attackers to cause a denial of service (infinite loop lead…

published 2005-05-28 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-1809

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
1
Exploit-DB

Summary

The Data function in class.smtp.php in PHPMailer 1.7.2 and earlier allows remote attackers to cause a denial of service (infinite loop leading to memory and CPU consumption) via a long header field.

Patch / fix

  • libphp-phpmailer Debian 14, Debian 13, Debian 12 1.73

debian advisories DEBIAN-CVE-2005-1807

Timeline

  1. First public exploit (EDB-25752)
  2. Published

Exploit prediction

4.50% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-25752 PHPMailer 1.7 - 'Data()' Remote Denial of Service dos, 2005-05-28
  • securitytracker.com http://securitytracker.com/id?1014069 referenced PoC, tagged "exploit" by a source, unverified
  • cybsec.com http://www.cybsec.com/vuln/PHPMailer-DOS.pdf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/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.