{"schemaVersion":3,"id":"CVE-2020-3166","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to read or write arbitrary files on the underlying operating system (OS). The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted arguments to a specific CLI command. A successful exploit could allow the attacker to read or write to arbitrary files on the underlying OS.","dates":{"published":"2020-02-26T16:51:11.143Z","modified":"2024-11-15T17:37:05.421Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.7,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":4.2,"severity":"medium","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.7,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":4.2,"severity":"medium","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.6,"severity":"medium","vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00288,"percentile":0.2001,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.003000000000000008,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00285},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00288,"percentile":0.2001}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00285,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00288,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00288,"percentile":0.2001}]},"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":"cisco","product":"adaptive_security_appliance_software","name":"adaptive security appliance software","label":"adaptive_security_appliance_software","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≥ 9.8, < 9.9.2.66","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.10, < 9.13.1.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.8, < 9.9.2.66 | ≥ 9.10, < 9.13.1.5","eol":null,"hubHref":"/vendor/cisco/adaptive_security_appliance_software"},{"vendor":"cisco","product":"cisco firepower extensible operating system (fxos)","name":"Cisco Firepower Extensible Operating System (FXOS)","label":"cisco firepower extensible operating system (fxos)","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < n/a","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < n/a","eol":null,"hubHref":"/vendor/cisco/cisco_firepower_extensible_operating_system_fxos"},{"vendor":"cisco","product":"firepower_extensible_operating_system","name":"firepower extensible operating system","label":"firepower_extensible_operating_system","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2.2.2.97","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.3, < 2.3.1.155","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.4, < 2.4.1.238","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.6, < 2.6.1.157","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.2.2.97 | ≥ 2.3, < 2.3.1.155 | ≥ 2.4, < 2.4.1.238 | ≥ 2.6, < 2.6.1.157","eol":null,"hubHref":"/vendor/cisco/firepower_extensible_operating_system"},{"vendor":"cisco","product":"secure_firewall_threat_defense","name":"secure firewall threat defense","label":"secure_firewall_threat_defense","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 6.2.2, < 6.2.3.16","noFixRecorded":false,"fixedIn":null},{"text":"≥ 6.3.0, < 6.5.0.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 6.2.2, < 6.2.3.16 | ≥ 6.3.0, < 6.5.0.3","eol":null,"hubHref":"/vendor/cisco/secure_firewall_threat_defense"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-fxos-cli-file","label":"tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-fxos-cli-file","hostname":"tools.cisco.com","tags":["Vendor Advisory","X Refsource CISCO"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-02-26T16:51:11.143Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-11-15T17:37:05.421Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":27,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T14:42:34.858Z","stale":false,"partial":false}}