{
  "id": "CVE-2024-4577",
  "url": "https://spydr.io/cve/CVE-2024-4577",
  "published": "2024-06-09T20:15:09.550Z",
  "modified": "2026-06-17T08:02:11.493Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99987,
  "epss_percentile": 0.99984,
  "exploited": true,
  "kev": {
    "added": "2024-06-12",
    "due": "2024-07-03",
    "action": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Known",
    "name": "PHP-CGI OS Command Injection Vulnerability",
    "notes": "This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://www.php.net/ChangeLog-8.php#; https://nvd.nist.gov/vuln/detail/CVE-2024-4577"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "PHP Group"
  ],
  "products": [
    "PHP Group PHP"
  ],
  "cwes": [
    "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.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2024/06/07/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/",
      "tags": [
        "Exploit",
        "Press/Media Coverage",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/11whoami99/CVE-2024-4577",
      "tags": [
        "Exploit"
      ]
    },
    {
      "url": "https://github.com/php/php-src/security/advisories/GHSA-3qgc-jrrr-25jv",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/rapid7/metasploit-framework/pull/19247",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://github.com/watchtowrlabs/CVE-2024-4577",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/xcanwin/CVE-2024-4577-PHP-RCE",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://isc.sans.edu/diary/30994",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://labs.watchtowr.com/no-way-php-strikes-again-cve-2024-4577/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240621-0008/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.imperva.com/blog/imperva-protects-against-critical-php-vulnerability-cve-2024-4577/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.php.net/ChangeLog-8.php#8.1.29",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.php.net/ChangeLog-8.php#8.2.20",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.php.net/ChangeLog-8.php#8.3.8",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://blog.talosintelligence.com/new-persistent-attacks-japan/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/php-cgi-argument-injection-to-rce-cve-2024-4577",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/php-cgi-os-command-injection-vulnerability-cve-2024-4577",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4577",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2024-4577",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}