VIR Vulnerability Intelligence Relay

CVE-2015-6834

critical
Published 2016-05-16 · Modified 2026-05-06
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
7.5
VIR risk
9.8

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.

Predictions

Exploit likelihood
97%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Application impact
VendorProductVersionsFixed
php phpphp{"endIncluding":"5.4.44"}
php phpphp5.5.0
php phpphp5.5.1
php phpphp5.5.2
php phpphp5.5.3
php phpphp5.5.4
php phpphp5.5.5
php phpphp5.5.6
php phpphp5.5.7
php phpphp5.5.8
php phpphp5.5.9
php phpphp5.5.10
php phpphp5.5.11
php phpphp5.5.12
php phpphp5.5.13
php phpphp5.5.14
php phpphp5.5.15
php phpphp5.5.16
php phpphp5.5.17
php phpphp5.5.18
php phpphp5.5.19
php phpphp5.5.20
php phpphp5.5.21
php phpphp5.5.22
php phpphp5.5.23
php phpphp5.5.24
php phpphp5.5.25
php phpphp5.5.26
php phpphp5.5.27
php phpphp5.5.28
php phpphp5.6.0
php phpphp5.6.1
php phpphp5.6.2
php phpphp5.6.3
php phpphp5.6.4
php phpphp5.6.5
php phpphp5.6.6
php phpphp5.6.7
php phpphp5.6.8
php phpphp5.6.9
php phpphp5.6.10
php phpphp5.6.11
php phpphp5.6.12

References

Verify integrity in audit chain (admin only). AS-IS.