What is the severity of CVE-2026-6921?

CVE-2026-6921 has a CVSS Base Score of 8.3/10 and is classified as High severity. It is important to assess the risk based on your specific environment.

How do I fix CVE-2026-6921?

Remediation typically involves updating the affected software products to the latest patched version. Refer to the 'Affected Products' and 'Remediation' sections on this page for specific mitigation steps and vendor advisories.

Home→Vulnerabilities→CVE-2026-6921

Disclosed

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)

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Exploitation Probability (EPSS)

Low Priority

0.03%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events

Apr 23, 2026

Vulnerability Disclosed

Published to component-level vulnerability database.

Apr 24, 2026

Last Updated

Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL

Associated Groups:Lazarus Group, APT28

Ransomware Campaigns:LockBit 3.0, BlackCat

IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

Affected Products

4 Total

google/chromeAll Versions

google/android-

linux/linux_kernel-

microsoft/windows-

References

https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_22.htmlGoogleblog

Release Notes

https://issues.chromium.org/issues/493315759Chromium

Permissions RequiredVendor Advisory

Am I Vulnerable?

Check your domain or package.json for CVE-2026-6921 exposure.

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Vulnerability Details

CVSS Base Score

8.3/ 10

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Published Date

Apr 23, 2026

Last Modified

Apr 24, 2026

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