CVE-2022-4900 MEDIUM

CVE-2022-4900: Potential buffer overflow in php_cli_server_startup_workers

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-119
Published November 2, 2023
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

6.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 2, 2023 CVE published
November 3, 2025 Record updated