{
    "id": "CVE-2024-4577",
    "published": "2024-06-09 20:15:09",
    "last_modified": "2026-06-17 08:02:11",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "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.",
    "epss_score": "0.99987",
    "epss_percentile": "0.99983",
    "kev": 1,
    "kev_due": "2024-07-03",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:34:50",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-07-03."
    },
    "products": [
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "microsoft",
            "product": "windows"
        },
        {
            "vendor": "php",
            "product": "php"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2024-4577",
        "date_added": "2024-06-12",
        "due_date": "2024-07-03",
        "vendor": "PHP Group",
        "product": "PHP",
        "name": "PHP-CGI OS Command Injection Vulnerability",
        "ransomware": 1
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "52331",
            "title": "PHP CGI Module 8.3.4 - Remote Code Execution (RCE)",
            "date": "2025-06-15",
            "url": "https://www.exploit-db.com/exploits/52331"
        }
    ],
    "refs_list": [
        "http://www.openwall.com/lists/oss-security/2024/06/07/1",
        "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://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://github.com/11whoami99/CVE-2024-4577",
        "https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv",
        "https://github.com/rapid7/metasploit-framework/pull/19247",
        "https://github.com/watchtowrlabs/CVE-2024-4577",
        "https://github.com/xcanwin/CVE-2024-4577-PHP-RCE",
        "https://isc.sans.edu/diary/30994",
        "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/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/",
        "https://security.netapp.com/advisory/ntap-20240621-0008/",
        "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#8.2.20",
        "https://www.php.net/ChangeLog-8.php#8.3.8",
        "http://www.openwall.com/lists/oss-security/2024/06/07/1",
        "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.talosintelligence.com/new-persistent-attacks-japan/",
        "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/"
    ]
}