Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

vulnerability

Debian: CVE-2017-12933: php5, php7.0 -- security update

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Aug 17, 2017
Added
Jan 10, 2018
Modified
Mar 30, 2026

Description

The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

Solutions

debian-upgrade-php5debian-upgrade-php7-0
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.