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PHP CVEs

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

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CVE-2016-4540

CRITICAL 9.8 CVSS 3.0
Published
May 22, 2016
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@debian.org
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The grapheme_stripos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.

Affected products and versions

  • PHP — Up to and including 5.5.34
  • PHP versions 5.6.0, 5.6.1, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 5.6.9, 5.6.10, 5.6.11, 5.6.12, 5.6.13, 5.6.14, 5.6.15, 5.6.16, 5.6.17, 5.6.18, 5.6.19, 5.6.20, 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5

References