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TI-2026-19137 Aliases CVE-2026-23764GHSA-vchc-7ph8-gwcp

VB-Audio Voicemeeter & Matrix Drivers DoS via Corrupted IoAllocateMdl Length

Priority MEDIUM 63CWE-823Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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 allocate non-paged pool and map it into user space, where a length value associated with the allocation is exposed and can be modified by an unprivileged local attacker. On subsequent IOCTL handling, the corrupted length is used directly as the IoAllocateMdl length argument without adequate integrity checks before building and mapping the MDL, which can cause a kernel crash (BSoD), typically PAGE_FAULT_IN_NONPAGED_AREA. This flaw allows a local user to trigger a denial-of-service on affected Windows systems.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00154 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VB-Audio SoftwareVoicemeeter (Standard)up to 1.1.1.9—No fix listedCNA
VB-Audio SoftwareVoicemeeter Bananaup to 2.1.1.9—No fix listedCNA
VB-Audio SoftwareVoicemeeter Potatoup to 3.1.1.9—No fix listedCNA
VB-Audio SoftwareMatrixup to 1.0.2.2—No fix listedCNA
VB-Audio SoftwareMatrix Coconutup to 2.0.2.2—No fix listedCNA
  • Voicemeeter (Standard) VendorVB-Audio Software Affected up to 1.1.1.9 Fixed in — No fix listed CNA
  • Voicemeeter Banana VendorVB-Audio Software Affected up to 2.1.1.9 Fixed in — No fix listed CNA
  • Voicemeeter Potato VendorVB-Audio Software Affected up to 3.1.1.9 Fixed in — No fix listed CNA
  • Matrix VendorVB-Audio Software Affected up to 1.0.2.2 Fixed in — No fix listed CNA
  • Matrix Coconut VendorVB-Audio Software Affected up to 2.0.2.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23764
  2. 2026-10-03 Alias added: GHSA-vchc-7ph8-gwcp

References

Exploit 1

Patch 2

Other 1

  • TI-2026-19136 VB-Audio Matrix Drivers Local Privilege Escalation via Kernel Memory Exposure CVSS 4.0HIGH 8.5
  • TI-2026-19135 VB-Audio Voicemeeter & Matrix Drivers DoS via MmMapLockedPagesSpecifyCache CVSS 4.0MEDIUM 6.9
  • TI-2026-19134 VB-Audio Voicemeeter & Matrix Drivers DoS via Improper FILE_OBJECT FsContext Initialization CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences