Vulnerability · Published Sep 21, 2026 · Assigned by VulDB
CVE-2026-94142BioStar Temperature Monitor Utility IOCTL BS_HWMIO64_W10.sys sub_1105C write-what-where
High 8.8
In plain English
A high-severity memory corruption in Temperature Monitor Utility from BioStar. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Official description
A security vulnerability has been detected in BioStar Temperature Monitor Utility 1.2.1806.2200. Affected by this vulnerability is the function sub_1105C of the file BS_HWMIO64_W10.sys of the component IOCTL Handler. Such manipulation of the argument PhysicalAddress leads to write-what-where condition. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| BioStar | Temperature Monitor Utility | 1.2.1806.2200 |
Weakness: CWE-123, CWE-119 · Vector: 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
References
- VDB-408057 | BioStar Temperature Monitor Utility IOCTL BS_HWMIO64_W10.sys sub_1105C write-what-where vdb-entry, technical-description
- VDB-408057 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-94142 | CVE Analysis and Report third-party-advisory
- Submit #893919 | BioStar Temperature Monitor Utility 1.2.1806.2200 Arbitrary Kernel Memory Read/Write third-party-advisory