Use After Free in Php

CVE-2015-6831

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.

Vulnerability class: Use-After-Free

EPSS: 0.071 (93.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2015-6831?
CVE-2015-6831 is a high-severity vulnerability in Php, classified under Use After Free. CVSS score: 7.3/10. Published 2016-01-19.
How severe is CVE-2015-6831?
High severity. CVSS v3 base score is 7.3 out of 10.