{"schemaVersion":3,"id":"CVE-2020-3999","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"VMware ESXi (7.0 prior to ESXi70U1c-17325551), VMware Workstation (16.x prior to 16.0 and 15.x prior to 15.5.7), VMware Fusion (12.x prior to 12.0 and 11.x prior to 11.5.7) and VMware Cloud Foundation contain a denial of service vulnerability due to improper input validation in GuestInfo. A malicious actor with normal user privilege access to a virtual machine can crash the virtual machine's vmx process leading to a denial of service condition.","dates":{"published":"2020-12-21T15:14:08.000Z","modified":"2024-08-04T07:52:20.757Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":2.1,"severity":"low","vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00383,"percentile":0.30716,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.00383},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00349,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00354,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00383,"percentile":0.30716}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00383,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00383,"percentile":0.30716}]},"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-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"vmware","product":"esxi","name":"ESXi","label":"esxi","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"7.0","noFixRecorded":false,"fixedIn":null},{"text":"7.0:beta","noFixRecorded":false,"fixedIn":null},{"text":"7.0:update_1","noFixRecorded":false,"fixedIn":null},{"text":"7.0:update_1a","noFixRecorded":false,"fixedIn":null},{"text":"7.0:update_1b","noFixRecorded":false,"fixedIn":null}],"versionsText":"7.0 | 7.0:beta | 7.0:update_1 | 7.0:update_1a | 7.0:update_1b","eol":{"isEol":true,"eolDate":"2025-10-02T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"7.0","label":"7.0","eolFrom":"2025-10-02T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":"7.0 Update 3w"},"product":{"name":"esxi","label":"VMware ESXi","category":"os"}},"hubHref":"/vendor/vmware/esxi"},{"vendor":"vmware","product":"fusion","name":"fusion","label":"fusion","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 11.5.0, < 11.5.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 11.5.0, < 11.5.7","eol":null,"hubHref":"/vendor/vmware/fusion"},{"vendor":"vmware","product":"workstation","name":"workstation","label":"workstation","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 15.0.0, < 15.5.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 15.0.0, < 15.5.7","eol":null,"hubHref":"/vendor/vmware/workstation"}],"affectedCount":3,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://www.vmware.com/security/advisories/VMSA-2020-0029.html","label":"www.vmware.com/security/advisories/VMSA-2020-0029.html","hostname":"www.vmware.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-12-21T15:14:08.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T07:52:20.757Z","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":"2026-10-19T11:12:53.661Z","stale":false,"partial":false}}