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CVE-2026-94129— BioStar VALKYRIE AURORA IOCTL BS_RVSIO64.sys sub_1105C write-what-where

Quick assessment

Affected

BioStar VALKYRIE AURORA

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 BioStar VALKYRIE AURORA 2.10.2411.0800 版本中检测到一处漏洞。该漏洞影响 BS_RVSIO64.sys 文件中 IOCTL 处理程序的 sub_1105C 函数。通过操纵 PhysicalAddress 参数，可导致“任意写”（write-what-where）条件，即攻击者可以控制写入的内存地址及写入的数据内容。该攻击需在本地环境下实施。利用代码已公开，且可被利用。供应商此前已就此事得到通知，但至今未作任何回应。

CVSS 8.8 · High EPSS 0.18% · P8 Updated Sep 21, 2026

In-the-Wild Activity Observed github_trending · medium

Possible ATT&CK Techniques 2 AI

T1543.003 · Windows Service T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

Vendor	Product	Version Range	Status
BioStar	VALKYRIE AURORA	`2.10.2411.0800`	affected

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Vulnerability Information

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Vulnerability Title

BioStar VALKYRIE AURORA IOCTL BS_RVSIO64.sys sub_1105C write-what-where

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was detected in BioStar VALKYRIE AURORA 2.10.2411.0800. This vulnerability affects the function sub_1105C of the file BS_RVSIO64.sys of the component IOCTL Handler. The manipulation of the argument PhysicalAddress results in write-what-where condition. The attack needs to be approached locally. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

任意地址可写任意内容条件

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
BioStar	VALKYRIE AURORA	2.10.2411.0800	`cpe:2.3:a:biostar:valkyrie_aurora::::::::`

II. Public POCs for CVE-2026-94129

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-94129

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Other References for CVE-2026-94129 (1)

🔗 VulDB | Security Check third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-94129

Same Patch Batch · BioStar · 2026-09-21 · 4 CVEs total

CVE-2026-94128	8.8 HIGH	BioStar VIVID LED DJ IOCTL BS_LED64.sys sub_1105C write-what-where
CVE-2026-94142	8.8 HIGH	BioStar Temperature Monitor Utility IOCTL BS_HWMIO64_W10.sys sub_1105C write-what-where
CVE-2026-94146	8.8 HIGH	BioStar BIOS Update Utility IOCTL BSMEM64_W10.sys sub_110BC write-what-where

IV. Related Vulnerabilities

Same vendor: BioStar

Same weakness: CWE-123