CVE-2026-23764: CWE-823: Use of Out-of-range Pointer Offset in VB-Audio Software Voicemeeter (Standard)
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.
AI Analysis
Technical Summary
The vulnerability (CVE-2026-23764) affects multiple VB-Audio Software products' virtual audio drivers, where non-paged pool memory is allocated and mapped into user space with an associated length value exposed and modifiable by an unprivileged local attacker. When the driver subsequently handles IOCTL requests, it uses the corrupted length value directly as the IoAllocateMdl length argument without proper integrity validation. This improper use can cause kernel memory corruption resulting in a system crash (BSoD). The flaw is categorized under CWE-823 (Use of Out-of-range Pointer Offset) and impacts versions ending in 1.1.1.9, 2.1.1.9, 3.1.1.9, 1.0.2.2, and 2.0.2.2 and earlier for the respective products.
Potential Impact
A local attacker with limited privileges can exploit this vulnerability to trigger a denial-of-service condition by causing a kernel crash on affected Windows systems. There is no indication of privilege escalation, code execution, or data disclosure. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — no official patch or remediation guidance is provided in the available data. Users should monitor VB-Audio Software advisories for updates and apply any official fixes once released. Until then, restricting local access to trusted users may reduce risk.
CVE-2026-23764: CWE-823: Use of Out-of-range Pointer Offset in VB-Audio Software Voicemeeter (Standard)
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 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.
CVSS v4.0
Score 6.8medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability (CVE-2026-23764) affects multiple VB-Audio Software products' virtual audio drivers, where non-paged pool memory is allocated and mapped into user space with an associated length value exposed and modifiable by an unprivileged local attacker. When the driver subsequently handles IOCTL requests, it uses the corrupted length value directly as the IoAllocateMdl length argument without proper integrity validation. This improper use can cause kernel memory corruption resulting in a system crash (BSoD). The flaw is categorized under CWE-823 (Use of Out-of-range Pointer Offset) and impacts versions ending in 1.1.1.9, 2.1.1.9, 3.1.1.9, 1.0.2.2, and 2.0.2.2 and earlier for the respective products.
Potential Impact
A local attacker with limited privileges can exploit this vulnerability to trigger a denial-of-service condition by causing a kernel crash on affected Windows systems. There is no indication of privilege escalation, code execution, or data disclosure. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — no official patch or remediation guidance is provided in the available data. Users should monitor VB-Audio Software advisories for updates and apply any official fixes once released. Until then, restricting local access to trusted users may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-01-15T18:42:20.939Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 697251f54623b1157c7bcf9d
Added to database: 01/22/2026, 16:36:05 UTC
Last enriched: 05/14/2026, 02:09:23 UTC
Last updated: 09/10/2026, 19:36:53 UTC
Views: 290
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.