CVE-2026-94146
High
Description
A 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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductBiostar Bios Update Utility
PublishedSep 21, 2026
First seenSep 21, 2026
Weakness typeCWE-123CWE-123CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| biostar bios_update_utility | 1.9.7.3 | — |
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