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Servers and applications

CVE-2007-1649

PHP 5.2.1 allows context-dependent attackers to read portions of heap memory by executing certain scripts with a serialized data input string beginning with S:, which does not properly track the number of input bytes being processed.

Severity
High 7.8
Published
24 Mar 2007
Last changed
16 Jun 2026
Added to UpHeron
14 Oct 2026
Exploit chance
7.5% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read data
CVSS vector
AV:N/AC:L/Au:N/C:C/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 5.2.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2007-1649
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2007-1649