{"schemaVersion":3,"id":"CVE-2016-7926","aliases":["ALPINE-CVE-2016-7926","UBUNTU-CVE-2016-7926","DEBIAN-CVE-2016-7926"],"status":"published","duplicateOf":null,"title":null,"description":"The Ethernet parser in tcpdump before 4.9.0 has a buffer overflow in print-ether.c:ethertype_print().","dates":{"published":"2017-01-28T01:33:00.000Z","modified":"2024-08-06T02:13:21.321Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","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","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 · Alpine","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","exploitability":10,"impact":9.8,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","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","exploitability":10,"impact":9.8,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Debian","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","exploitability":10,"impact":9.8,"computed":true}]},"epss":{"probability":0.03172,"percentile":0.87835,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":-0.02600000000000033,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.03198},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02933,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03172,"percentile":0.87835}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02933,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03198,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03172,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03172,"percentile":0.87835}]},"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":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/119.html"}],"affected":[{"vendor":"alpine","product":"tcpdump","name":"tcpdump","label":"tcpdump","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/tcpdump","purlType":"apk","versions":[{"text":"< 4.9.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.9.0-r0","eol":null,"hubHref":null},{"vendor":"debian","product":"tcpdump","name":"tcpdump","label":"tcpdump","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/tcpdump","purlType":"deb","versions":[{"text":"< 4.9.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.9.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"tcpdump","name":"tcpdump","label":"tcpdump","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/tcpdump","purlType":"deb","versions":[{"text":"< 4.9.0-1ubuntu1~ubuntu14.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 4.9.0-1ubuntu1~ubuntu16.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.9.0-1ubuntu1~ubuntu14.04.1 | < 4.9.0-1ubuntu1~ubuntu16.04.1","eol":null,"hubHref":null},{"vendor":"tcpdump","product":"tcpdump","name":"tcpdump","label":"tcpdump","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 4.8.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 4.8.1","eol":null,"hubHref":"/vendor/tcpdump/tcpdump"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securitytracker.com/id/1037755","label":"www.securitytracker.com/id/1037755","hostname":"www.securitytracker.com","tags":["VDB Entry","X Refsource SECTRACK"]},{"url":"http://www.debian.org/security/2017/dsa-3775","label":"www.debian.org/security/2017/dsa-3775","hostname":"www.debian.org","tags":["Vendor Advisory","X Refsource DEBIAN"]},{"url":"https://access.redhat.com/errata/RHSA-2017:1871","label":"access.redhat.com/errata/RHSA-2017:1871","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1494526.html","label":"www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1494526.html","hostname":"www.mail-archive.com","tags":["X Refsource CONFIRM"]},{"url":"http://www.securityfocus.com/bid/95852","label":"www.securityfocus.com/bid/95852","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/201702-30","label":"security.gentoo.org/glsa/201702-30","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2016-7926","label":"security.alpinelinux.org/vuln/CVE-2016-7926","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-7926","label":"ubuntu.com/security/CVE-2016-7926","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1494526.html","label":"www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1494526.html","hostname":"www.mail-archive.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-3205-1","label":"ubuntu.com/security/notices/USN-3205-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-7926","label":"www.cve.org/CVERecord?id=CVE-2016-7926","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-7926","label":"security-tracker.debian.org/tracker/CVE-2016-7926","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-809-1","DSA-3775-1","MGASA-2017-0061","OPENSUSE-SU-2024:11425-1","RHSA-2017:1871","SUSE-SU-2017:0656-1","SUSE-SU-2017:1110-1","USN-3205-1"],"duplicates":[],"related":["OPENSUSE-SU-2024:11425-1","SUSE-SU-2017:0656-1","SUSE-SU-2017:1110-1","USN-3205-1"]},"timeline":[{"kind":"published","date":"2017-01-28T01:33:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T02:13:21.321Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T10:12:44.818Z","stale":false,"partial":false}}