Published: 03/02/2022 Updated: 01/03/2022

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

CVSS v3 Base Score: 8.2 | Impact Score: 6 | Exploitability Score: 1.5

VMScore: 641

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

An issue exists in Insyde InsydeH2O 5.x, affecting FwBlockServiceSmm. 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

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insyde insydeh2o
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CWE-119 https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2022022 https://security.netapp.com/advisory/ntap-20220222-0002/https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf https://nvd.nist.gov https://www.kb.cert.org/vuls/id/796611

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CVE-2021-33627

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