Unrated severityNVD Advisory· Published Feb 15, 2023· Updated May 5, 2025
CVE-2022-32471
CVE-2022-32471
Description
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- IhisiSmm/InsydeH2Odescription
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
2News mentions
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