{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2022-02-23T15:06:25.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"tags":["x_refsource_MISC"],"url":"https://www.insyde.com/security-pledge"},{"tags":["x_refsource_MISC"],"url":"https://www.insyde.com/security-pledge/SA-2022014"},{"tags":["x_refsource_CONFIRM"],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"},{"tags":["x_refsource_CONFIRM"],"url":"https://security.netapp.com/advisory/ntap-20220222-0004/"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-33625","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://www.insyde.com/security-pledge","refsource":"MISC","url":"https://www.insyde.com/security-pledge"},{"name":"https://www.insyde.com/security-pledge/SA-2022014","refsource":"MISC","url":"https://www.insyde.com/security-pledge/SA-2022014"},{"name":"https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf","refsource":"CONFIRM","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"},{"name":"https://security.netapp.com/advisory/ntap-20220222-0004/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20220222-0004/"}]}}},"adp":[{"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.insyde.com/security-pledge"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.insyde.com/security-pledge/SA-2022014"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://security.netapp.com/advisory/ntap-20220222-0004/"},{"url":"https://www.kb.cert.org/vuls/id/796611"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-04T19:12:29.871Z"}}]},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2021-33625","datePublished":"2022-02-03T01:55:10.000Z","dateReserved":"2021-05-28T00:00:00.000Z","dateUpdated":"2025-11-04T19:12:29.871Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"}