CVE-2026-9937: Use after free in UI

Published Apr 13, 2026
·
Updated

Chromium: CVE-2026-9937 Use after free in UI

Other sources

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Use after free in UI in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

— NVD

Credit

Google

Affected Software

6 affected componentsFixes available
Google Google Chrome (Windows)<148.0.7778.216
Google Chrome<148.0.7778.216
148.0.7778.216
All of the following
Google Chrome<148.0.7778.216
Microsoft Windows
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<148.0.3967.96

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 148.0.7778.216
  2. Upgrade

    Upgrade Google Chrome / Chromium (Windows) to a version that resolves this vulnerability.

    Fixed in 148.0.7778.216
  3. Compensating control

    If you cannot immediately upgrade, mitigate the risk of renderer compromise by ensuring the renderer process is not exposed to attacker-controlled web content (e.g., restrict which sites/users can load untrusted pages in the browser environment).

Event History

Apr 13, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 28, 2026
CVE Published
via MITRE·10:25 PM
Data Sourced
via MITRE·10:25 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeaknessAffected Software
May 29, 2026
Data Sourced
via Microsoft·11:20 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·11:20 PM
DescriptionAffected Software
Aug 21, 58391
Event
via FIRST·08:06 PM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-9937?

CVE-2026-9937 has a severity rating of high with a CVSS score of 8.3.

2

How do I fix CVE-2026-9937?

To fix CVE-2026-9937, update Google Chrome or Microsoft Edge to the latest version that addresses this vulnerability.

3

What does CVE-2026-9937 affect?

CVE-2026-9937 affects Google Chrome and Microsoft Edge due to a use after free vulnerability in the UI.

4

What is the nature of the vulnerability in CVE-2026-9937?

CVE-2026-9937 is a use after free vulnerability that can potentially allow attackers to execute arbitrary code.

5

Is CVE-2026-9937 present in all versions of Google Chrome?

CVE-2026-9937 is present in Google Chrome on Windows prior to version 148.0.7778.216.

Company

Resources

Contact

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