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Urgent: Update Google Chrome on Windows to Prevent Serious Security Risk

A high-risk security flaw has been found in Google Chrome on Windows that could let attackers gain control of your computer by exploiting a weakness in how Chrome handles login credentials. This matters because it could allow someone with access to your device to take over important system functions.

14 August 2026

Reference: CVE-2026-19139

1. What is being reported?

Researchers have discovered a vulnerability in Google Chrome for Windows that allows a local attacker to escalate their privileges on the operating system. This means someone who already has limited access to your computer could use this flaw to gain higher-level control, potentially installing malicious software or accessing sensitive information.

2. What this means in plain English

If an attacker can get onto your computer, they might use this flaw to take full control, which could lead to data theft, disruption of your business, or loss of access to your files. This is especially risky if your device is shared or not well protected.

3. Could this affect a small business?

Any small business or organisation using Google Chrome on Windows could be affected if they have not updated to the latest version. Those who do not use Chrome or who keep their software up to date are less likely to be impacted.

4. What to do now

  • Check which version of Google Chrome you are running on Windows devices.
  • Update Google Chrome immediately to version 151.0.7922.109 or later.
  • Ensure all staff understand the importance of installing updates promptly.
  • If unsure about your Chrome version or update process, contact your IT provider for assistance.

5. Ask your IT provider

Can you confirm that all Windows devices running Google Chrome in our organisation are updated to version 151.0.7922.109 or later to protect against the recent privilege escalation vulnerability?

6. Bottom line

Keep Google Chrome on Windows fully updated to prevent attackers from gaining control of your computers.

Information based on CISA KEV, NVD and reputable security reporting.

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