High severity7.8NVD Advisory· Published Jan 1, 2022· Updated Jun 17, 2026
CVE-2021-44852
CVE-2021-44852
Description
An issue was discovered in BS_RCIO64.sys in Biostar RACING GT Evo 2.1.1905.1700. A low-integrity process can open the driver's device object and issue IOCTLs to read or write to arbitrary physical memory locations (or call an arbitrary address), leading to execution of arbitrary code. This is associated with 0x226040, 0x226044, and 0x226000.
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Affected products
2- Biostar/RACING GT Evodescription
- Range: 2.1.1905.1700
Patches
Vulnerability mechanics
References
1- nephosec.com/biostar-exploit/nvdExploitThird Party Advisory
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