CVE-2026-94129Public exploit

Local privilege escalation via arbitrary kernel writes

Published Sep 21, 2026 · Updated Sep 21, 2026

Write-what-where in BIOSTAR VALKYRIE AURORA Utility 2.10.2411.0800 allows local users to overwrite arbitrary kernel memory. The BS_RVSIO64.sys IOCTL handler function sub_1105C uses the caller-controlled PhysicalAddress argument as the destination of a memory write without adequately restricting the target address. Low-privilege local access is required; successful exploitation grants kernel-level memory control and can compromise the host.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Write-what-where in BIOSTAR VALKYRIE AURORA Utility 2.10.2411.0800 allows local users to overwrite arbitrary kernel memory. The BS_RVSIO64.sys IOCTL handler function sub_1105C uses the caller-controlled PhysicalAddress argument as the destination of a memory write without adequately restricting the target address. Low-privilege local access is required; successful exploitation grants kernel-level memory control and can compromise the host.

The record

CVE
CVE-2026-94129
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
BIOSTAR Microtech International Corp.
Product
VALKYRIE AURORA Utility
Classifications
CWE-123, CWE-119, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.10.2411.0800

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

BIOSTAR Microtech International Corp. · VALKYRIE AURORA Utilityversion=2.10.2411.0800

Published CVSS scores

8.8VulDB CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
6.8VulDB CNAAV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
9.3VulDB CNACVSS: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
8.8VulDB CNACVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-123Write-what-where Condition
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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