{"id":"CVE-2021-36226","state":"PUBLISHED","title":"Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.","description":"Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.","publishedAt":"2023-02-06T00:00:00.000Z","updatedAt":"2025-03-26T18:39:10.299Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users/","https://www.youtube.com/watch?v=vsg9YgvGBec","https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md"],"weaknesses":["CWE-347"],"ingestedAt":"2026-10-29T19:48:44.655Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/36xxx/CVE-2021-36226.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-36226","state":"PUBLISHED","datePublished":"2023-02-06T00:00:00.000Z","dateUpdated":"2025-03-26T18:39:10.299Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-07-08T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users/"},{"url":"https://www.youtube.com/watch?v=vsg9YgvGBec"},{"url":"https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2023-02-06T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users/","tags":["x_transferred"]},{"url":"https://www.youtube.com/watch?v=vsg9YgvGBec","tags":["x_transferred"]},{"url":"https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T00:54:50.911Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-03-26T14:37:39.839665Z","id":"CVE-2021-36226","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-347","type":"CWE","lang":"en","description":"CWE-347 Improper Verification of Cryptographic Signature"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-03-26T18:39:10.299Z"}}]}}}