CVE-2015-6834

CRITICAL

Php < 5.4.44 - Use After Free

Title source: rule

Description

Multiple use-after-free vulnerabilities in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 allow remote attackers to execute arbitrary code via vectors related to (1) the Serializable interface, (2) the SplObjectStorage class, and (3) the SplDoublyLinkedList class, which are mishandled during unserialization.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Taoguang Chen · textdosphp
https://www.exploit-db.com/exploits/38122
exploitdb WORKING POC VERIFIED
by Taoguang Chen · textdosphp
https://www.exploit-db.com/exploits/38120

Scores

CVSS v3 9.8
EPSS 0.3724
EPSS Percentile 97.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (43)
php/php 5.5.0
php/php 5.5.1
php/php 5.5.2
php/php 5.5.3
php/php 5.5.4
php/php 5.5.5
php/php 5.5.6
php/php 5.5.7
php/php 5.5.8
php/php 5.5.9
... and 33 more
Published May 16, 2016
Tracked Since Feb 18, 2026