{"id":"CVE-2016-4344","aliases":["EUVD-2016-5344","GHSA-qpxh-x584-wp5r","UBUNTU-CVE-2016-4344"],"status":"published","title":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows...","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05175,"percentile":0.92504,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2016-05-22T01:00:00Z","modified":"2026-10-24T14:12:06Z","products":[{"vendor":"php","product":"php"}],"references":[{"url":"https://bugs.php.net/bug.php?id=71637","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Patch","Vendor Advisory","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2016/04/28/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"http://php.net/ChangeLog-7.php","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4344"},{"url":"https://github.com/advisories/GHSA-qpxh-x584-wp5r"},{"url":"https://ubuntu.com/security/CVE-2016-4344","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-4344","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-4344","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","status":"published","published":"2016-05-22T01:00:00Z","modified":"2024-08-06T00:25:14.514Z","updated_at":"2026-11-02T14:33:35.149563Z"}],"euvd":[{"id":"EUVD-2016-5344","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","status":"published","published":"2016-05-22T01:00:00Z","modified":"2024-08-06T00:25:14Z","updated_at":"2026-11-03T02:22:46.750795Z"}],"ghsa":[{"id":"GHSA-qpxh-x584-wp5r","title":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows...","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","status":"published","published":"2022-05-17T03:54:54Z","modified":"2023-01-27T05:02:49Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:42:06.500861Z"}],"nvd":[{"id":"CVE-2016-4344","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","status":"published","published":"2016-05-22T01:59:18.573Z","modified":"2026-06-17T00:47:23.087Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:03:25.366449Z"}],"osv":[{"id":"CVE-2016-4344","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","status":"published","published":"2016-05-22T01:59:18.573Z","modified":"2026-10-24T14:12:06.531500113Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:02.454775Z"},{"id":"UBUNTU-CVE-2016-4344","description":"Integer overflow in the xml_utf8_encode function in ext/xml/xml.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long argument to the utf8_encode function, leading to a heap-based buffer overflow.","status":"withdrawn","published":"2016-05-22T01:59:00Z","modified":"2025-07-16T07:34:31.438354Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:12.261906Z"}]}}