VYPR
Unrated severityNVD Advisory· Published Aug 8, 2006· Updated Jun 16, 2026

CVE-2006-4020

CVE-2006-4020

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

68
  • PHP/PHP68 versions
    cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*+ 67 more
    • cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.4:patch1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:beta2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:beta3:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:beta4:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:beta_4_patch1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:rc1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.0:rc2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.10:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.11:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.3:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.4:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.5:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.6:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.7:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.8:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.3.9:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.4.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.4.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.4.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:4.4.3:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:beta1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:beta2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:beta3:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:beta4:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:rc1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:rc2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.0:rc3:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*
    • cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*
    • (no CPE)range: <=5.1.4, <=4.4.3

Patches

Vulnerability mechanics

References

39

News mentions

0

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