CVE-2026-23764Public exploit

Local kernel crash via corrupted MDL length

Published Jan 22, 2026 · Updated Jan 22, 2026

Driver denial of service in affected VB-Audio Voicemeeter and Matrix releases allows local users to crash Windows via virtual audio IOCTLs. The drivers map non-paged pool into user space with write access to a stored allocation length, then reuse that mutable value directly in IoAllocateMdl before building the MDL. Low-privileged local access is sufficient to corrupt the length and trigger a kernel BSoD, with no reported confidentiality or integrity impact.

CVSS severity6.8
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Driver denial of service in affected VB-Audio Voicemeeter and Matrix releases allows local users to crash Windows via virtual audio IOCTLs. The drivers map non-paged pool into user space with write access to a stored allocation length, then reuse that mutable value directly in IoAllocateMdl before building the MDL. Low-privileged local access is sufficient to corrupt the length and trigger a kernel BSoD, with no reported confidentiality or integrity impact.

The record

CVE
CVE-2026-23764
Published
Jan 22, 2026
Updated
Jan 22, 2026
Vendor
VB-Audio Software
Product
Matrix Coconut
Classifications
CWE-823, CAPEC-129, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.0.2.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

VB-Audio Software · Matrix Coconutversion=0 <=2.0.2.2
VB-Audio Software · Voicemeeter Bananaversion=0 <=2.1.1.9
VB-Audio Software · Voicemeeter Standardversion=0 <=1.1.1.9
VB-Audio Software · Voicemeeter Potatoversion=0 <=3.1.1.9
VB-Audio Software · Matrixversion=0 <=1.0.2.2

Published CVSS scores

6.8VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-823Use of Out-of-range Pointer Offset
CAPEC-129Pointer Manipulation
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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