{"schemaVersion":3,"id":"CVE-2016-9031","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES when dealing with 32-bit file systems. An attacker can craft an input that can cause a kernel panic and potentially be leveraged into a full privilege escalation vulnerability. This vulnerability is distinct from CVE-2016-8733.","dates":{"published":"2016-12-14T17:00:00.000Z","modified":"2024-08-06T02:35:02.561Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"CVE.org","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":7.8,"severity":"high","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.9,"severity":"medium","vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00488,"percentile":0.40756,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00488},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00488,"percentile":0.40756}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00488,"percentile":null},{"date":"2026-10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Reference (talosintelligence.com)","source":"reference","url":"http://www.talosintelligence.com/reports/TALOS-2016-0249/","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-190","name":"Integer Overflow or Wraparound","description":"The product performs a calculation that can\n         produce an integer overflow or wraparound when the logic\n         assumes that the resulting value will always be larger than\n         the original value. This occurs when an integer value is\n         incremented to a value that is too large to store in the\n         associated representation. When this occurs, the value may\n         become a very small or negative number.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/190.html"}],"affected":[{"vendor":"joyent","product":"smartos","name":"smartos","label":"smartos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"OS 20161110T013148Z","noFixRecorded":false,"fixedIn":null},{"text":"20161110t013148z","noFixRecorded":false,"fixedIn":null}],"versionsText":"OS 20161110T013148Z | 20161110t013148z","eol":null,"hubHref":"/vendor/joyent/smartos"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securityfocus.com/bid/94921","label":"www.securityfocus.com/bid/94921","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Broken Link","Third Party Advisory"]},{"url":"http://www.talosintelligence.com/reports/TALOS-2016-0249/","label":"www.talosintelligence.com/reports/TALOS-2016-0249/","hostname":"www.talosintelligence.com","tags":["X Refsource MISC","Exploit","Third Party Advisory","VDB Entry"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2016-12-14T17:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T02:35:02.561Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":41,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T12:12:52.319Z","stale":false,"partial":false}}