What is CVE-2023-3767?

CVE-2023-3767 is a critical-severity vulnerability in Easyphp Webserver, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-09-27.

How severe is CVE-2023-3767?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Easyphp Webserver

CVE-2023-3767

An OS command injection vulnerability has been found on EasyPHP Webserver affecting version 14.1. This vulnerability could allow an attacker to get full access to the system by sending a specially crafted exploit to the /index.php?zone=settings parameter.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-09-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.5th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.018 · change: +0.003

Affected products

Easyphp Webserver — versions 14.1

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.incibe.es/incibe-cert/alerta-temprana/avisos/inyeccion-de-comandos-os-en-ea… (Third Party Advisory)

Frequently asked questions

What is CVE-2023-3767?: CVE-2023-3767 is a critical-severity vulnerability in Easyphp Webserver, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-09-27.
How severe is CVE-2023-3767?: Critical severity. CVSS v3 base score is 9.8 out of 10.