UpHeron
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Servers and applications

CVE-2006-5465

Buffer overflow in PHP before 5.2.0 allows remote attackers to execute arbitrary code via crafted UTF-8 inputs to the (1) htmlentities or (2) htmlspecialchars functions.

Severity
High 7.5
Published
4 Nov 2006
Last changed
16 Jun 2026
Added to UpHeron
14 Oct 2026
Exploit chance
10% in the next 30 daysHigher than 95% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 5.1.5
  • Version 5.1.4
  • Version 5.1.3
  • Version 5.1.2
All 16 release lines
  • Every version up to 5.1.6
  • Version 5.0-rc1
  • Version 5.0-rc2
  • Version 5.0-rc3
  • Version 5.0.0
  • Version 5.0.1
  • Version 5.0.2
  • Version 5.0.3
  • Version 5.0.4
  • Version 5.0.5
  • Version 5.1.0
  • Version 5.1.1
  • Version 5.1.2
  • Version 5.1.3
  • Version 5.1.4
  • Version 5.1.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2006-5465
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2006-5465