{"schemaVersion":3,"id":"CVE-2020-7928","aliases":["UBUNTU-CVE-2020-7928"],"status":"published","duplicateOf":null,"title":null,"description":"A user authorized to perform database queries may trigger a read overrun and access arbitrary memory by issuing specially crafted queries. This issue affects MongoDB Server v4.4 versions prior to 4.4.1; MongoDB Server v4.2 versions prior to 4.2.9; MongoDB Server v4.0 versions prior to 4.0.20 and MongoDB Server v3.6 versions prior to 3.6.20.","dates":{"published":"2020-11-23T16:35:12.958Z","modified":"2024-09-17T00:20:37.058Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01442,"percentile":0.72788,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0.012000000000000031,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.0143},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01442,"percentile":0.72788}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0143,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01442,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01442,"percentile":0.72788}]},"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-158","name":"Improper Neutralization of Null Byte or NUL Character","description":"The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.","type":"weakness","status":"Incomplete","abstraction":"Variant","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/158.html"}],"affected":[{"vendor":"ubuntu","product":"mongodb","name":"mongodb","label":"mongodb","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mongodb","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"mongodb inc","product":"mongodb server","name":"MongoDB Server","label":"mongodb server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.4, < 4.4.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.2, < 4.2.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.0, < 4.0.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.6, < 3.6.20","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.4, < 4.4.1 | ≥ 4.2, < 4.2.9 | ≥ 4.0, < 4.0.20 | ≥ 3.6, < 3.6.20","eol":null,"hubHref":"/vendor/mongodb_inc/mongodb_server"},{"vendor":"mongodb","product":"mongodb","name":"mongodb","label":"mongodb","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.6.0, < 3.6.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.0.0, < 4.0.20","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.2.0, < 4.2.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.4.0, < 4.4.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.5.0, < 4.5.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.6.0, < 3.6.20 | ≥ 4.0.0, < 4.0.20 | ≥ 4.2.0, < 4.2.9 | ≥ 4.4.0, < 4.4.1 | ≥ 4.5.0, < 4.5.1","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"mongodb","label":"MongoDB Server","category":"database"}},"hubHref":"/vendor/mongodb/mongodb"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://jira.mongodb.org/browse/SERVER-49404","label":"jira.mongodb.org/browse/SERVER-49404","hostname":"jira.mongodb.org","tags":["X Refsource MISC","REPORT","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-7928","label":"ubuntu.com/security/CVE-2020-7928","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-7928","label":"www.cve.org/CVERecord?id=CVE-2020-7928","hostname":"www.cve.org","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-11-23T16:35:12.958Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-17T00:20:37.058Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T13:02:40.656Z","stale":false,"partial":false}}