CVE-2022-4900
Potential buffer overflow in php_cli_server_startup_workers
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-119 |
| Vendor | n/a |
| Product | php |
| Published | Nov 2, 2023 |
| Last Updated | Nov 3, 2025 |
Stay Ahead of the Next One
Get instant alerts for n/a php
Be the first to know when new medium vulnerabilities affecting n/a php are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
n/a / php
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Software Collections
All versions affected Fedora / Fedora
All versions affected References
access.redhat.com: https://access.redhat.com/security/cve/CVE-2022-4900 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2179880 security.netapp.com: https://security.netapp.com/advisory/ntap-20231130-0008/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/10/msg00011.html