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THREAT OPS › Threat News › [NVD] CVE-2021-33625 (HIGH 7.5) — 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

[NVD] CVE-2021-33625 (HIGH 7.5) — 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

lownvdPublished 2022-02-03

CVE-2021-33625 CVSS: 7.5 HIGH Published: 2022-02-03T02:15:06.930

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.

Indicators of compromise

CVE-2021-33625cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2021-33625