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PHP CVEs

Vulnerabilities in the PHP language itself, and which PHP versions they affect.

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CVE-2006-4020

MEDIUM 4.6 CVSS 2.0
Published
August 8, 2006
Last modified
June 16, 2026
NVD status
Modified
Reported by
secalert@redhat.com
CVSS vector
AV:L/AC:L/Au:N/C:P/I:P/A:P

Description

scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read.

Affected products and versions

  • PHP versions 4.0, 4.0.0, 4.0.1, 4.0.1patch1, 4.0.1patch2, 4.0.2, 4.0.3, 4.0.3patch1, 4.0.4, 4.0.4patch1, 4.0.5, 4.0.6, 4.0.7, 4.0.7rc1, 4.0.7rc2, 4.0.7rc3, 4.0beta1, 4.0beta2, 4.0beta3, 4.0beta4, 4.0beta_4_patch1, 4.0rc1, 4.0rc2, 4.1.0, 4.1.1, 4.1.2, 4.2, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.3.10, 4.3.11, 4.4.0, 4.4.1, 4.4.2, 4.4.3, 5.0.0, 5.0.0beta1, 5.0.0beta2, 5.0.0beta3, 5.0.0beta4, 5.0.0rc1, 5.0.0rc2, 5.0.0rc3, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0rc1, 5.0rc2, 5.0rc3, 5.1.0, 5.1.1, 5.1.2, 5.1.4

References