CVE-2024-4577

9.8 CRITICAL CISA KEV - Actively Exploited
Published: June 09, 2024 Modified: November 03, 2025

Description

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/06/07/1
Source: security@php.net
Mailing List Third Party Advisory
https://github.com/11whoami99/CVE-2024-4577
Source: security@php.net
Exploit
https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv
Source: security@php.net
Exploit Third Party Advisory
https://github.com/rapid7/metasploit-framework/pull/19247
Source: security@php.net
Exploit Issue Tracking Patch
https://github.com/watchtowrlabs/CVE-2024-4577
Source: security@php.net
Exploit Third Party Advisory
https://github.com/xcanwin/CVE-2024-4577-PHP-RCE
Source: security@php.net
Exploit Third Party Advisory
https://isc.sans.edu/diary/30994
Source: security@php.net
Exploit Third Party Advisory
https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/
Source: security@php.net
Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20240621-0008/
Source: security@php.net
Third Party Advisory
https://www.php.net/ChangeLog-8.php#8.1.29
Source: security@php.net
Release Notes
https://www.php.net/ChangeLog-8.php#8.2.20
Source: security@php.net
Release Notes
https://www.php.net/ChangeLog-8.php#8.3.8
Source: security@php.net
Release Notes
http://www.openwall.com/lists/oss-security/2024/06/07/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Press/Media Coverage Third Party Advisory
https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://blog.talosintelligence.com/new-persistent-attacks-japan/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://github.com/11whoami99/CVE-2024-4577
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit
https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://github.com/rapid7/metasploit-framework/pull/19247
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Patch
https://github.com/watchtowrlabs/CVE-2024-4577
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://github.com/xcanwin/CVE-2024-4577-PHP-RCE
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://isc.sans.edu/diary/30994
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20240621-0008/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.php.net/ChangeLog-8.php#8.1.29
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://www.php.net/ChangeLog-8.php#8.2.20
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://www.php.net/ChangeLog-8.php#8.3.8
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://www.vicarius.io/vsociety/posts/php-cgi-argument-injection-to-rce-cve-2024-4577
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.vicarius.io/vsociety/posts/php-cgi-os-command-injection-vulnerability-cve-2024-4577
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4577
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

42 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
94.4%
100th percentile
Exploitation Status
Actively Exploited
Remediation due: 2024-07-03

Weaknesses (CWE)

Affected Vendors

php fedoraproject microsoft