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CVE Record

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

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.

MediumCVSS 6.9Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A local, unprivileged Windows user can crash systems running affected VB-Audio virtual audio drivers. The impact is denial of service: blue screen, interrupted audio workflows, and possible loss of unsaved work. The provided sources do not indicate data theft, privilege escalation, or remote compromise.

Executive priority

Treat as a moderate availability risk. Patch during the next endpoint maintenance cycle, faster for production audio systems or shared machines where local users could disrupt operations.

Technical view

Affected VB-Audio drivers call MmMapLockedPagesSpecifyCache with UserMode access to map non-paged pool memory into user space. When mapping fails, the raised exception is not handled, causing a kernel crash, typically SYSTEM_SERVICE_EXCEPTION with STATUS_NO_MEMORY.

Likely exposure

Exposure is limited to Windows systems with affected Voicemeeter Standard, Banana, Potato, Matrix, or Matrix Coconut virtual audio drivers installed. The issue is local-only, but shared workstations, studios, kiosks, or systems with multiple local users are more exposed.

Exploitation context

The CVE is not marked KEV, and the bundle provides no active exploitation evidence. A cited public research repository is tagged as exploit-related, so defenders should assume local crash reproduction details may be publicly available.

Researcher notes

This is CWE-755: improper handling of exceptional conditions in kernel driver memory mapping. Validation should focus on version and driver presence, not live crash testing on production systems.

Mitigation direction

  • Upgrade to vendor-fixed VB-Audio releases where applicable.
  • Prioritize shared or business-critical audio workstations.
  • Remove unused VB-Audio virtual audio drivers from managed endpoints.
  • Restrict local interactive access on affected systems.
  • Monitor vendor guidance for exact fixed versions and upgrade notes.

Validation and detection

  • Inventory installed VB-Audio products and driver versions.
  • Check for affected driver filenames on Windows endpoints.
  • Confirm versions are newer than the affected release thresholds.
  • Review crash logs for SYSTEM_SERVICE_EXCEPTION or STATUS_NO_MEMORY.
  • Validate remediation by confirming updated driver versions.
Prepared
Confidence
high
Sources
7

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-755: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-23762 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.9 (4.0)
Known Exploited
No
Published

Vector: 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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
6Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.9CVSS 4.0MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NVulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

6.9Medium
CVSS 4.0 vector shape for CVE-2026-23762Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: 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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
VB-Audio SoftwareVoicemeeter (Standard)0unaffected
VB-Audio SoftwareVoicemeeter Banana0unaffected
VB-Audio SoftwareVoicemeeter Potato0unaffected
VB-Audio SoftwareMatrix0unaffected
VB-Audio SoftwareMatrix Coconut0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-755 · source CWE mapping

Improper Handling of Exceptional Conditions

Improper Handling of Exceptional Conditions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.