CVE-2025-12727: Inappropriate implementation in V8

Published Oct 23, 2025
·
Updated

Chromium: CVE-2025-12727 Inappropriate implementation in V8

Other sources

Inappropriate implementation in V8 in Google Chrome prior to 142.0.7444.137 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

— MITRE

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

Credit

303f06e3

Affected Software

6 affected componentsFixes available
Microsoft Edge (Chromium-based)
All of the following
Google Chrome<142.0.7444.134
Any of the following
Linux Linux kernel
Microsoft Windows
All of the following
Google Chrome<142.0.7444.135
Apple macOS

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 142.0.7444.137

Event History

Oct 23, 2025
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeakness
Nov 6, 2025
Data Sourced
via Microsoft·07:20 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·07:20 PM
Description
Nov 10, 2025
CVE Published
via MITRE·08:00 PM
Data Sourced
via MITRE·08:00 PM
DescriptionWeakness
Data Sourced
via NVD·08:15 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2025-12727?

CVE-2025-12727 is classified with a severity rating that indicates potential risk levels associated with the vulnerability.

2

How do I fix CVE-2025-12727?

To fix CVE-2025-12727, update Google Chrome to version 142.0.7444.135 or later, or update Microsoft Edge (Chromium-based) to the latest version as provided by Microsoft.

3

Which applications are affected by CVE-2025-12727?

CVE-2025-12727 affects Google Chrome versions up to 142.0.7444.134 and Microsoft Edge (Chromium-based) using the same Chromium codebase.

4

Is Google Chrome the only browser affected by CVE-2025-12727?

No, Microsoft Edge (Chromium-based) is also affected due to its reliance on the Chromium engine used by Google Chrome.

5

What is the nature of CVE-2025-12727?

CVE-2025-12727 involves an inappropriate implementation in the V8 JavaScript engine, which could lead to potential exploitation.

Contact

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