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Vulnerability · Published Jan 22, 2026 · Assigned by VulnCheck

CVE-2026-23761VB-Audio Voicemeeter & Matrix Drivers DoS via Improper FILE_OBJECT FsContext Initialization

Medium 6.9

In plain English

A medium-severity security flaw in Matrix from VB-Audio Software. 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).

Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.2%top 92.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

VB-Audio Voicemeeter, Voicemeeter Banana, and Voicemeeter Potato (versions ending in 1.1.1.9, 2.1.1.9, and 3.1.1.9 and earlier, respectively), as well as VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a vulnerability in their virtual audio drivers (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys, and vbaudio_vmvaio3*.sys). When a handle is opened with a special file attribute value, the drivers improperly initialize FILE_OBJECT->FsContext to a non-pointer magic value. If subsequent operations are not handled by the VB-Audio driver and are forwarded down the audio driver stack (e.g., via PortCls to ks.sys), the invalid FsContext value can be dereferenced, causing a kernel crash (BSoD), typically SYSTEM_SERVICE_EXCEPTION with STATUS_ACCESS_VIOLATION. This flaw allows a local unprivileged user to trigger a denial-of-service on affected Windows systems.

Affected products (as reported)

VendorProductVersions
VB-Audio Software Voicemeeter (Standard) 0 – through 1.1.1.9
VB-Audio Software Voicemeeter Banana 0 – through 2.1.1.9
VB-Audio Software Voicemeeter Potato 0 – through 3.1.1.9
VB-Audio Software Matrix 0 – through 1.0.2.2
VB-Audio Software Matrix Coconut 0 – through 2.0.2.2

Weakness: CWE-824 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References