What is CVE-2021-3146?

CVE-2021-3146 is a high-severity vulnerability in Dolby Audio X2, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2021-04-08.

How severe is CVE-2021-3146?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Dolby Audio X2

CVE-2021-3146

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

Published 2021-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.3th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Dolby Audio X2
Microsoft Exchange Server — versions 2010, 2013
Microsoft Visual C\+\+ — versions 2005, 2008, 2010
Microsoft Visual Studio — versions 2005, 2008, 2010
Microsoft Visual Studio .Net — versions 2003

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

professional.dolby.com/siteassets/pdfs/dolby-dax2-security-advisory-2021-04-07… (Vendor Advisory)

Frequently asked questions

What is CVE-2021-3146?: CVE-2021-3146 is a high-severity vulnerability in Dolby Audio X2, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2021-04-08.
How severe is CVE-2021-3146?: High severity. CVSS v3 base score is 7.8 out of 10.