{"schemaVersion":3,"id":"CVE-2023-22814","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An authentication bypass issue via spoofing was discovered in the token-based authentication mechanism that could allow an attacker to carry out an impersonation attack.\n\n\nThis issue affects My Cloud OS 5 devices: before 5.26.202.","dates":{"published":"2023-06-30T23:05:43.130Z","modified":"2024-11-26T16:09:14.746Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":10,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00687,"percentile":0.52056,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00687},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00687,"percentile":0.52056}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00687,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00687,"percentile":0.52056}]},"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-290","name":"Authentication Bypass by Spoofing","description":"This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/290.html"}],"affected":[{"vendor":"western digital","product":"my cloud os 5","name":"My Cloud OS 5","label":"my cloud os 5","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 5.26.202","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.26.202","eol":null,"hubHref":"/vendor/western_digital/my_cloud_os_5"},{"vendor":"westerndigital","product":"my_cloud_os","name":"my cloud os","label":"my_cloud_os","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≥ 5.02.104, < 5.26.202","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 5.02.104, < 5.26.202","eol":null,"hubHref":"/vendor/westerndigital/my_cloud_os"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.westerndigital.com/support/product-security/wdc-23006-my-cloud-firmware-version-5-26-202","label":"www.westerndigital.com/support/product-security/wdc-23006-my-cloud-firmware-version-5-26-202","hostname":"www.westerndigital.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-06-30T23:05:43.130Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-11-26T16:09:14.746Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T00:38:06.169Z","stale":false,"partial":false}}