{"schemaVersion":3,"id":"CVE-2026-81051","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Dell ThinOS 10, versions prior to 2605_10.2616, contain a Security Version Number Mutable to Older Versions vulnerability. A low privileged attacker with physical access could potentially exploit this vulnerability, leading to Protection mechanism bypass.","dates":{"published":"2026-09-10T15:37:10.998Z","modified":"2026-09-14T15:41:31.973Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.6,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.6,"severity":"medium","vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.6,"severity":"medium","vector":"CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00196,"percentile":0.08776,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.049,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00147},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00155,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00155,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00155,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00196,"percentile":0.08776}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00147,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00196,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00196,"percentile":0.08776}]},"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-1328","name":"Security Version Number Mutable to Older Versions","description":"Security-version number in hardware is mutable, resulting in the ability to downgrade (roll-back) the boot firmware to vulnerable code versions.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/1328.html"}],"affected":[{"vendor":"dell","product":"thinos","name":"thinos","label":"thinos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 2605_10.2616","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2605_10.2616","eol":null,"hubHref":"/vendor/dell/thinos"},{"vendor":"dell","product":"thinos 10","name":"ThinOS 10","label":"thinos 10","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2605_10.2616","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2605_10.2616","eol":null,"hubHref":"/vendor/dell/thinos_10"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.dell.com/support/kbdoc/en-us/000502746/dsa-2026-389-security-update-for-dell-thinos-10-for-multiple-vulnerabilities","label":"www.dell.com/support/…","hostname":"www.dell.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-10T15:37:10.998Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-14T15:41:31.973Z","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":"2026-10-20T04:02:29.226Z","stale":false,"partial":false}}