CVE-2026-94146 | BioStar BIOS Update Utility 1.9.7.3 IOCTL BSMEM64_W10.sys sub_110BC PhysicalAddress/Size write-what-where

A vulnerability, which was classified as critical, was found in BioStar BIOS Update Utility 1.9.7.3. This issue affects the function sub_110BC of the file BSMEM64_W10.sys of the component IOCTL Handler. The manipulation of the argument PhysicalAddress/Size results in write-what-where condition.

This vulnerability is known as CVE-2026-94146. Attacking locally is a requirement. Furthermore, an exploit is available.

The vendor was contacted early about this disclosure but did not respond in any way.VulDB Recent EntriesRead More