Auth bypass in Yamaha Corporation Vocaloid6

CVE-2026-76137

Missing authentication for critical function vulnerability exists in VOCALOID6. Any process running under the same local user account as a running VOCALOID6 Editor instance may escalate privileges via a local named pipe.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (4.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-76137: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-76137?
CVE-2026-76137 is a low-severity vulnerability in Yamaha Corporation Vocaloid6, classified under Missing Authentication for Critical Function. CVSS score: 3.3/10. Published 2026-08-21.
How severe is CVE-2026-76137?
Low severity. CVSS v3 base score is 3.3 out of 10.