The Dolby Audio X2 (DAX2) API service before 0.8.8.90 on Windows allows local users to gain privileges.

Are you affected?

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• cpe dolby/audio x2< 0.8.8.90

How to fix CVE-2021-3146

• Upgrade

  CVE-2021-3146 lists a fix boundary at 0.8.8.90. Compare the installed build with that boundary before you change production.

• Version check

  Affected < 0.8.8.90

• Advisory

  Open the cve_org record and follow its fix.

• Official advisories

  • CVE.org · cve.org
  • Monitored products — critical · nvd.nist.gov

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Technology hubs

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Apr 8, 2021 · Monitored products — critical

   Detected

   The Dolby Audio X2 (DAX2) API service before 0.8.8.90 on Windows allows local users to gain privileges.

2. Jun 17, 2026 · Monitored products — critical

   Updated

   The Dolby Audio X2 (DAX2) API service before 0.8.8.90 on Windows allows local users to gain privileges.

Sources

• CVE.orgVulnerability recordCVE-2021-3146

  Official CVE identifier

  cve.org
• Monitored products — criticalVendor advisoryCVE-2021-3146

  The Dolby Audio X2 (DAX2) API service before 0.8.8.90 on Windows allows local users to gain privileges.

  nvd.nist.gov

References

• Vendor Advisory · professional.dolby.com

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

• CVE.orgNov 2, 2026
• Monitored products — criticalNov 1, 2026