{"schemaVersion":3,"id":"CVE-2016-3751","aliases":["UBUNTU-CVE-2016-3751"],"status":"published","duplicateOf":null,"title":null,"description":"Unspecified vulnerability in libpng before 1.6.20, as used in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-07-01, allows attackers to gain privileges via a crafted application, as demonstrated by obtaining Signature or SignatureOrSystem access, aka internal bug 23265085.","dates":{"published":"2016-07-11T01:00:00.000Z","modified":"2024-08-06T00:03:34.421Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":7.8,"severity":"high","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":4.6,"impact":9.8,"computed":true}]},"epss":{"probability":0.00461,"percentile":0.38935,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":-0.207,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00668},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00668,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00461,"percentile":0.38935}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00668,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00461,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00461,"percentile":0.38935}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"android","name":"android","label":"android","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/android","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"google","product":"android","name":"android","label":"android","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"4.0","noFixRecorded":false,"fixedIn":null},{"text":"4.0.1","noFixRecorded":false,"fixedIn":null},{"text":"4.0.2","noFixRecorded":false,"fixedIn":null},{"text":"4.0.3","noFixRecorded":false,"fixedIn":null},{"text":"4.0.4","noFixRecorded":false,"fixedIn":null},{"text":"4.1","noFixRecorded":false,"fixedIn":null},{"text":"4.1.2","noFixRecorded":false,"fixedIn":null},{"text":"4.2","noFixRecorded":false,"fixedIn":null},{"text":"4.2.1","noFixRecorded":false,"fixedIn":null},{"text":"4.2.2","noFixRecorded":false,"fixedIn":null},{"text":"4.3","noFixRecorded":false,"fixedIn":null},{"text":"4.3.1","noFixRecorded":false,"fixedIn":null},{"text":"4.4","noFixRecorded":false,"fixedIn":null},{"text":"4.4.1","noFixRecorded":false,"fixedIn":null},{"text":"4.4.2","noFixRecorded":false,"fixedIn":null},{"text":"4.4.3","noFixRecorded":false,"fixedIn":null},{"text":"5.0","noFixRecorded":false,"fixedIn":null},{"text":"5.0.1","noFixRecorded":false,"fixedIn":null},{"text":"5.1","noFixRecorded":false,"fixedIn":null},{"text":"5.1.0","noFixRecorded":false,"fixedIn":null},{"text":"6.0","noFixRecorded":false,"fixedIn":null},{"text":"6.0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.1 | 4.1.2 | 4.2 | 4.2.1 | 4.2.2 | 4.3 | 4.3.1 | 4.4 | 4.4.1 | 4.4.2 | 4.4.3 | 5.0 | 5.0.1 | 5.1 | 5.1.0 | 6.0 | 6.0.1","eol":{"isEol":true,"eolDate":null,"matchMethod":"cpe","cycle":{"name":"4.0","label":"4.0 'Ice Cream Sandwich'","eolFrom":null,"isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"android","label":"Android OS","category":"os"}},"hubHref":"/vendor/google/android"},{"vendor":"libpng","product":"libpng","name":"libpng","label":"libpng","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 1.6.19","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1.6.19","eol":null,"hubHref":"/vendor/libpng/libpng"}],"affectedCount":3,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://android.googlesource.com/platform/external/libpng/+/9d4853418ab2f754c2b63e091c29c5529b8b86ca","label":"android.googlesource.com/platform/external/libpng/+/9d4853418ab2f754c2b63e091c29c5529b8b86ca","hostname":"android.googlesource.com","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2016/07/09/4","label":"www.openwall.com/lists/oss-security/2016/07/09/4","hostname":"www.openwall.com","tags":["Mailing List","REPORT"]},{"url":"http://source.android.com/security/bulletin/2016-07-01.html","label":"source.android.com/security/bulletin/2016-07-01.html","hostname":"source.android.com","tags":["Vendor Advisory","REPORT"]},{"url":"https://security.netapp.com/advisory/ntap-20240719-0004/","label":"security.netapp.com/advisory/ntap-20240719-0004/","hostname":"security.netapp.com","tags":[]},{"url":"https://ubuntu.com/security/CVE-2016-3751","label":"ubuntu.com/security/CVE-2016-3751","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-3751","label":"www.cve.org/CVERecord?id=CVE-2016-3751","hostname":"www.cve.org","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2016-07-11T01:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T00:03:34.421Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T04:22:37.326Z","stale":false,"partial":false}}