VULNERABILITY ALERT: Google Chrome Browser for Desktop

The UBC Cybersecurity Team is aware that Google published a security advisory to address a vulnerability with Chrome for Desktop – a Heap buffer overflow in V8.

Google is aware of reports that an exploit for CVE-2021-21148 exists in the wild.

The vulnerability affects Chrome for Desktop versions prior to 88.0.4324.150.

The impact of this vulnerability may allow a remote attacker to execute arbitrary code on the target system. Google did not release any technical details about this vulnerability.


This vulnerability is rated as a HIGH risk. A software patch exists to mitigate this risk. Please patch this vulnerability within 14 days.

Please notify with any questions or concerns you may have.


How to check and update your Chrome Version:

Chrome users can updated to v88.0.4324.150 via the browser’s built-in update function (see Chrome menu, Help option, and About Google Chrome section).

Navigate to Chrome menu (Three vertical dots in the top right corner)

  1. Select Help
  2. Select About Google Chrome
  3. Check that your Chrome version is 88.0.4324.150
  4. Update if an update is available

Note: This vulnerability is reported for Desktop versions of Google Chrome


Actions Required

These vulnerabilities are rated as an overall HIGH risk. A patch exists to mitigate this vulnerability. Please take mitigating actions within 14 Days of receiving this notification.

For more information on these vulnerabilities, please refer to links in references.


  1. Locate the device or application and investigate.
  2. Notify business owner(s).
  3. Perform mitigating actions as required within 14 Days of receiving this notification.




UBC Cybersecurity Confidential Communications

You may have noted that this vulnerability alert was taken directly from the UBC Cybersecurity Confidential Communications article posted at:

To ensure such timely information is not missed, if you haven’t already, please sign up for a privileged Confidential Communications account by going to the Confidential Communications portal at (VPN connection required) and selecting “Apply for Privileged Access” on the right-hand side under “Membership”. This particularly applies to administrators.