What is CVE-2026-6921?

CVE-2026-6921 is a high-severity vulnerability in Google Android, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.3/10. Published 2026-04-23.

How severe is CVE-2026-6921?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Google Android

CVE-2026-6921

Race in GPU in Google Chrome on Windows prior to 147.0.7727.117 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file. (Chromium security severity: Medium)

Vulnerability class: Race Condition

EPSS: 0.000 (8.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

chrome-cve-admin@google.com (Release Notes)
chrome-cve-admin@google.com (Permissions Required, Vendor Advisory)

Frequently asked questions

What is CVE-2026-6921?: CVE-2026-6921 is a high-severity vulnerability in Google Android, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 8.3/10. Published 2026-04-23.
How severe is CVE-2026-6921?: High severity. CVSS v3 base score is 8.3 out of 10.