CVE-2026-9973

Google · Chrome

An out-of-bounds write vulnerability exists in the V8 JavaScript engine of Google Chrome prior to version 148.

Executive summary

A critical out-of-bounds write vulnerability in the V8 engine of Google Chrome could lead to remote code execution or application crashes.

Vulnerability

The vulnerability is an out-of-bounds write error within the V8 JavaScript engine. This type of memory corruption typically allows an attacker to execute arbitrary code or cause a denial-of-service condition by crafting malicious JavaScript content.

Business impact

With a CVSS score of 8.8, this vulnerability is highly severe, as memory corruption in the V8 engine is a common vector for browser-based attacks. Successful exploitation allows for the execution of code within the context of the browser, potentially leading to the compromise of sensitive user information or unauthorized system access.

Remediation

Immediate Action: Upgrade all instances of Google Chrome to version 148 or higher immediately.

Proactive Monitoring: Review application crash reports and security logs for recurring memory-related errors that may indicate an attacker is attempting to weaponize this flaw.

Compensating Controls: Utilize endpoint protection platforms (EPP) to detect and block malicious scripts or unauthorized process behaviors originating from the browser.

Exploitation status

Public Exploit Available: false

Analyst recommendation

The V8 engine is a critical component of the browser, and flaws in this area are frequently targeted by threat actors. Administrators should treat this update with high priority and ensure that all browser instances are patched to the latest version to prevent potential remote code execution.