CVE-2026-94146
BioStar BIOS Update Utility IOCTL BSMEM64_W10.sys sub_110BC write-what-where
CVSS 4.0 9.3 CRITICALCVSS 3.1 8.8 HIGHCVSS 3.0 8.8 HIGHCVSS 2.0 6.8 Check source for fixed versionsKEV status unknown
cve-program · CVE-2026-94146
PublishedA vulnerability 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. Attacking locally is a requirement. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
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CVE-2026-94146 · CVE overview and exploitation status
cve-program · CVE-2026-94146
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