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PHP CVEs

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

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CVE-2015-6831

HIGH 7.3 CVSS 3.1
Published
January 19, 2016
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@opentext.com
Weakness
CWE-416
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Description

Multiple use-after-free vulnerabilities in SPL in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allow remote attackers to execute arbitrary code via vectors involving (1) ArrayObject, (2) SplObjectStorage, and (3) SplDoublyLinkedList, which are mishandled during unserialization.

Affected products and versions

  • PHP — Before 5.4.44
  • PHP — From 5.5.0 (including) to 5.5.28 (excluding)
  • PHP — From 5.6.0 (including) to 5.6.12 (excluding)

References