CVE-2026-23762: VB-Audio Voicemeeter & Matrix Drivers DoS via MmMapLockedPagesSpecifyCache

Severity: medium (CVSS 6.9 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-22 · updated 2026-06-17
Weakness: CWE-755

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). The drivers map non-paged pool memory into user space via MmMapLockedPagesSpecifyCache using UserMode access without proper exception handling. If the mapping fails, such as when a process has exhausted available virtual address space, MmMapLockedPagesSpecifyCache raises an exception that is not caught, causing a kernel crash (BSoD), typically SYSTEM_SERVICE_EXCEPTION with STATUS_NO_MEMORY. This flaw allows a local unprivileged user to trigger a denial-of-service on affected Windows systems.

Affected products

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

References

Get alerted when CVE-2026-23762 or the next vulnerability affects your stack