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Microsoft Releases Security Updates for Microsoft Edge Browser

On June 24, 2021 Microsoft released updates for their Edge Browser addressing two vulnerabilities that an attacker could exploit to inject and execute malicious code.

Alert status

This update contains the following Microsoft Edge-specific update:

The ACSC is highlighting this reporting to ensure Australian organisations are informed about the current global threat environment, and are equipped to take proactive measures to improve your organisation’s cyber security posture. 

ACSC encourages users and administrators to review the Release notes for Microsoft Edge Security Updates and apply the necessary updates. We encourage any sightings to be reported to

Additional Advice for home users:

To mitigate this threat, Microsoft Edge users can go to Settings > About Microsoft Edge. If your browser version on Linux, macOS and Windows is listed as version 91.0.864.59 no action is required. If not, manually check for updates and restart the browser.

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