CVE-2026-94146 (GCVE-0-2026-94146)

Vulnerability from cvelistv5 – Published: 2026-09-21 07:00 – Updated: 2026-09-22 15:41
VLAI
Title
BioStar BIOS Update Utility IOCTL BSMEM64_W10.sys sub_110BC write-what-where
Summary
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.
Severity
9.3 (Critical)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:53 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3826 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/408061 vdb-entrytechnical-description
https://vuldb.com/vuln/408061/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94146 third-party-advisory
https://vuldb.com/submit/894066 third-party-advisory
Impacted products
Vendor Product Version CPE status
BioStar BIOS Update Utility Affected: 1.9.7.3
    cpe:2.3:o:biostar:bios_update_utility:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Bigcat (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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