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

> Local unprivileged users can crash Windows systems by triggering an unhandled exception in VB-Audio virtual audio drivers during memory mapping failures.

- **Severity:** Medium 6.9 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jan 2026
- **Updated:** 14 May 2026
- **Also known as:** GHSA-jhfw-xr8m-rrf7

## What is CVE-2026-23762?

CVE-2026-23762 is a medium-severity denial of service vulnerability in VB-Audio Software Matrix, published on 22 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### 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). 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.

Weakness: CWE-755 (Improper Handling of Exceptional Conditions)

## Which versions are affected by CVE-2026-23762?


## How do I fix CVE-2026-23762?

No fix has been published for CVE-2026-23762 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-23762 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23762 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-23762 and fix it if it is affected.

What it is: CVE-2026-23762 is a medium-severity denial of service vulnerability in VB-Audio Software Matrix, published on 22 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-23762 exists.

Affected product: VB-Audio Software Matrix. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-23762/ (Markdown: https://insights.sbomify.com/CVE-2026-23762/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-23762
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-23762
- OSV: https://osv.dev/vulnerability/CVE-2026-23762

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-23762/
Summaries are generated and may contain mistakes; the official description above is the record.