{"id":"CVE-2016-9936","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-9936","generatedAt":"2026-10-28T19:45:53.355Z","title":"The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data.","description":"The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.","published":"2017-01-04T20:59:01.000Z","lastModified":"2026-06-17T00:56:48.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["php/php"],"epss":{"score":0.04267,"percentile":0.91033,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2016/12/12/2","tags":["Mailing List"],"source":"cve@mitre.org"},{"url":"http://www.php.net/ChangeLog-7.php","tags":["Patch","Release Notes"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/94849","source":"cve@mitre.org"},{"url":"https://access.redhat.com/errata/RHSA-2018:1296","source":"cve@mitre.org"},{"url":"https://bugs.php.net/bug.php?id=72978","tags":["Exploit","Issue Tracking"],"source":"cve@mitre.org"},{"url":"https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/12/12/2","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.php.net/ChangeLog-7.php","tags":["Patch","Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/94849","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:1296","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.php.net/bug.php?id=72978","tags":["Exploit","Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-9936","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}