{"schemaVersion":3,"id":"CVE-2023-31926","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"System files could be overwritten using the less command in Brocade Fabric OS before Brocade Fabric OS v9.1.1c and v9.2.0.","dates":{"published":"2023-08-02T00:22:14.166Z","modified":"2025-02-13T16:50:15.001Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00157,"percentile":0.04434,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00157},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00157,"percentile":0.04434}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00157,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00157,"percentile":0.04434}]},"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-281","name":"Improper Preservation of Permissions","description":"The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/281.html"},{"id":"CWE-665","name":"Improper Initialization","description":"The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/665.html"}],"affected":[{"vendor":"broadcom","product":"brocade_fabric_operating_system_firmware","name":"brocade fabric operating system firmware","label":"brocade_fabric_operating_system_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 9.1.1c","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.1.1c","eol":null,"hubHref":"/vendor/broadcom/brocade_fabric_operating_system"},{"vendor":"brocade","product":"fabric_os","name":"fabric os","label":"fabric_os","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< Brocade Fabric OS v9.1.1c and v9.2.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< Brocade Fabric OS v9.1.1c and v9.2.0","eol":null,"hubHref":"/vendor/brocade/fabric_os"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.broadcom.com/external/content/SecurityAdvisories/0/22388","label":"support.broadcom.com/external/content/SecurityAdvisories/0/22388","hostname":"support.broadcom.com","tags":["Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20230908-0007/","label":"security.netapp.com/advisory/ntap-20230908-0007/","hostname":"security.netapp.com","tags":["Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-08-02T00:22:14.166Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-02-13T16:50:15.001Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":28,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T15:47:25.602Z","stale":false,"partial":false}}