CVE-2026-94146CWE-119CWE-123

CVE-2026-94146

High · published September 21, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
7.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
9.3 · 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
EPSS
0.00182 · 7.4th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-123 · Write-what-where Condition
Published
2026-09-21T11:16Z
References (4)
https://vuldb.com/cve/CVE-2026-94146 · [email protected]https://vuldb.com/submit/894066 · [email protected]https://vuldb.com/vuln/408061 · [email protected]https://vuldb.com/vuln/408061/cti · [email protected]
EPSS history
Timeline
  • 22 SEP 03:44Z
    EPSS moved — → 0%
    epss
  • 21 SEP 07:00Z
    BioStar BIOS Update Utility IOCTL BSMEM64_W10.sys sub_110BC write-what-where
    cvelistv5