# CVE-2024-4577: Argument Injection in PHP-CGI

> CVE-2024-4577: Argument Injection in PHP-CGI. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-4577
Last updated: 2025-10-21T23:05:16Z

- Published: 2024-06-09 19:42 UTC · Updated: 2025-10-21 23:05 UTC · Assigner: php
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 100.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-06-12, federal due date 2024-07-03, ransomware use: Known
- CWE: CWE-78

## 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.

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- php\_group: php
- PHP Group: PHP

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-4577)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-4577)
- [https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/](https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/)
- [https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html](https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html)
- [https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately](https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately)
- [https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/](https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/)
- [https://github.com/11whoami99/CVE-2024-4577](https://github.com/11whoami99/CVE-2024-4577)
- [https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv](https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv)
- [https://github.com/rapid7/metasploit-framework/pull/19247](https://github.com/rapid7/metasploit-framework/pull/19247)
- [https://github.com/watchtowrlabs/CVE-2024-4577](https://github.com/watchtowrlabs/CVE-2024-4577)
- [https://github.com/xcanwin/CVE-2024-4577-PHP-RCE](https://github.com/xcanwin/CVE-2024-4577-PHP-RCE)
- [https://isc.sans.edu/diary/30994](https://isc.sans.edu/diary/30994)
- [https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/](https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/)
- [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/)
- [https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/)
- [https://security.netapp.com/advisory/ntap-20240621-0008/](https://security.netapp.com/advisory/ntap-20240621-0008/)
- [https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/](https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/)
- [https://www.php.net/ChangeLog-8.php\#8.1.29](https://www.php.net/ChangeLog-8.php#8.1.29)
- [https://www.php.net/ChangeLog-8.php\#8.2.20](https://www.php.net/ChangeLog-8.php#8.2.20)
- [https://www.php.net/ChangeLog-8.php\#8.3.8](https://www.php.net/ChangeLog-8.php#8.3.8)
- [http://www.openwall.com/lists/oss-security/2024/06/07/1](http://www.openwall.com/lists/oss-security/2024/06/07/1)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-4577 · Markdown: https://rewindex.com/cve/CVE-2024-4577.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-4577 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:12:47.462Z