Rapid7

vulnerability

PHP Vulnerability: CVE-2022-4900

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Nov 2, 2023
Added
Nov 13, 2023
Modified
Mar 30, 2026

Description

A vulnerability was found in PHP where setting the environment variable PHP_CLI_SERVER_WORKERS to a large value leads to a heap buffer overflow.

Solutions

php-upgrade-8_0_21php-upgrade-8_1_8
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.