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4 vulnerabilities by VB-Audio Software

CVE-2026-23761 (GCVE-0-2026-23761)

Vulnerability from cvelistv5 – Published: 2026-01-22 16:17 – Updated: 2026-01-22 16:52
VLAI?
Title
VB-Audio Voicemeeter & Matrix Drivers DoS via Improper FILE_OBJECT FsContext Initialization
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). 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.
Severity ?
6.9 (Medium)
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
CWE
  • CWE-824 - Access of Uninitialized Pointer
Assigner
References
Impacted products
Vendor Product Version
VB-Audio Software Voicemeeter (Standard) Affected: 0 , ≤ 1.1.1.9 (semver)
Create a notification for this product.
Credits
Klaus Hahnenkamp
Show details on NVD website
To clipboard 

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CVE-2026-23762 (GCVE-0-2026-23762)

Vulnerability from cvelistv5 – Published: 2026-01-22 16:17 – Updated: 2026-01-22 18:24
VLAI?
Title
VB-Audio Voicemeeter & Matrix Drivers DoS via MmMapLockedPagesSpecifyCache
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 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.
Severity ?
6.9 (Medium)
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
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version
VB-Audio Software Voicemeeter (Standard) Affected: 0 , ≤ 1.1.1.9 (semver)
Create a notification for this product.
Credits
Klaus Hahnenkamp
Show details on NVD website
To clipboard 

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CVE-2026-23763 (GCVE-0-2026-23763)

Vulnerability from cvelistv5 – Published: 2026-01-22 16:17 – Updated: 2026-01-22 18:25
VLAI?
Title
VB-Audio Matrix Drivers Local Privilege Escalation via Kernel Memory Exposure
Summary
VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a local privilege escalation vulnerability in the VBMatrix VAIO virtual audio driver (vbmatrixvaio64*_win10.sys). The driver allocates a 128-byte non-paged pool buffer and, upon receiving IOCTL 0x222060, maps it into user space using an MDL and MmMapLockedPagesSpecifyCache. Because the allocation size is not page-aligned, the mapping exposes the entire 0x1000-byte kernel page containing the buffer plus adjacent non-paged pool allocations with read/write permissions. An unprivileged local attacker can open a device handle (using the required 0x800 attribute flag), invoke the IOCTL to obtain the mapping, and then read or modify live kernel objects and pointers present on that page. This enables bypass of KASLR, arbitrary kernel memory read/write within the exposed page, corruption of kernel objects, and escalation to SYSTEM.
Severity ?
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-668 - Exposure of Resource to Wrong Sphere
Assigner
References
Impacted products
Vendor Product Version
VB-Audio Software Matrix Affected: 0 , ≤ 1.0.2.2 (semver)
Create a notification for this product.
Credits
Klaus Hahnenkamp
Show details on NVD website
To clipboard 

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CVE-2026-23764 (GCVE-0-2026-23764)

Vulnerability from cvelistv5 – Published: 2026-01-22 16:16 – Updated: 2026-01-23 14:33
VLAI?
Title
VB-Audio Voicemeeter & Matrix Drivers DoS via Corrupted IoAllocateMdl Length
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.
Severity ?
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-823 - Use of Out-of-range Pointer Offset
Assigner
References
Impacted products
Vendor Product Version
VB-Audio Software Voicemeeter (Standard) Affected: 0 , ≤ 1.1.1.9 (semver)
Create a notification for this product.
Credits
Klaus Hahnenkamp
Show details on NVD website
To clipboard 

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