{"schemaVersion":3,"id":"CVE-2022-46456","aliases":["UBUNTU-CVE-2022-46456","DEBIAN-CVE-2022-46456"],"status":"published","duplicateOf":null,"title":null,"description":"NASM v2.16 was discovered to contain a global buffer overflow in the component dbgdbg_typevalue at /output/outdbg.c.","dates":{"published":"2023-01-04T00:00:00.000Z","modified":"2025-04-10T14:25:40.291Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","exploitability":4.6,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","exploitability":4.6,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.1,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00361,"percentile":0.28447,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.0040000000000000105,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00357},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00361,"percentile":0.28447}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00357,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00361,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00361,"percentile":0.28447}]},"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":[{"id":"REF_55DF369FFC139824","name":"Exploit Reference (bugzilla.nasm.us)","source":"reference","url":"https://bugzilla.nasm.us/show_bug.cgi?id=3392814","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","description":"The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/120.html"}],"affected":[{"vendor":"debian","product":"nasm","name":"nasm","label":"nasm","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/nasm","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"nasm","name":"nasm","label":"nasm","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/nasm","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"qt6-webengine","name":"qt6-webengine","label":"qt6-webengine","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/qt6-webengine","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"nasm","product":"netwide_assembler","name":"netwide assembler","label":"netwide_assembler","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"2.16","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc10","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc11","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc12","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc4","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc5","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc6","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc7","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc8","noFixRecorded":false,"fixedIn":null},{"text":"2.16:rc9","noFixRecorded":false,"fixedIn":null},{"text":"2.16.01","noFixRecorded":false,"fixedIn":null}],"versionsText":"2.16 | 2.16:rc10 | 2.16:rc11 | 2.16:rc12 | 2.16:rc4 | 2.16:rc5 | 2.16:rc6 | 2.16:rc7 | 2.16:rc8 | 2.16:rc9 | 2.16.01","eol":null,"hubHref":"/vendor/nasm/netwide_assembler"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://bugzilla.nasm.us/show_bug.cgi?id=3392814","label":"bugzilla.nasm.us/show_bug.cgi?id=3392814","hostname":"bugzilla.nasm.us","tags":["REPORT","Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-46456","label":"ubuntu.com/security/CVE-2022-46456","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-46456","label":"www.cve.org/CVERecord?id=CVE-2022-46456","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-46456","label":"security-tracker.debian.org/tracker/CVE-2022-46456","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-46456","label":"nvd.nist.gov/vuln/detail/CVE-2022-46456","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-01-04T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-04-10T14:25:40.291Z","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":"2026-10-21T09:07:47.452Z","stale":false,"partial":false}}