{"id":"CVE-2021-36225","aliases":["EUVD-2021-22845","GHSA-w72f-88g7-j8wf"],"status":"published","title":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as...","description":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01046,"percentile":0.64598,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862","CWE-863"],"published":"2023-02-06T00:00:00Z","modified":"2026-06-17T03:58:33Z","products":[{"vendor":"westerndigital","product":"my_cloud_os"}],"references":[{"url":"https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users/","tags":["x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://www.youtube.com/watch?v=vsg9YgvGBec","tags":["x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md","tags":["x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36225"},{"url":"https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users"},{"url":"https://github.com/advisories/GHSA-w72f-88g7-j8wf"}],"sources":{"cve":[{"id":"CVE-2021-36225","description":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.","status":"published","published":"2023-02-06T00:00:00Z","modified":"2025-03-26T18:39:27.824Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:33:05.989686Z"}],"euvd":[{"id":"EUVD-2021-22845","description":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.","status":"published","published":"2023-02-06T00:00:00Z","modified":"2025-03-26T18:39:27Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:50.922534Z"}],"ghsa":[{"id":"GHSA-w72f-88g7-j8wf","title":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as...","description":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.","status":"published","published":"2023-02-06T15:30:24Z","modified":"2025-03-26T21:31:50Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-862","CWE-863"],"updated_at":"2026-11-02T15:00:28.149554Z"}],"nvd":[{"id":"CVE-2021-36225","description":"Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.","status":"published","published":"2023-02-06T14:15:08.92Z","modified":"2026-06-17T03:58:33.097Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:07:07.323379Z"}]}}