Ref# ADV2026_118 | Date: Feb 28th 2026

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Microsoft Edge published a security advisory highlighting vulnerabilities in the following product on February 26, 2026. It is recommended that you take the necessary precautions by ensuring your product is always updated.

• Microsoft Edge Stable Channel – versions prior to 145.0.3800.82

For more information on this update, you can follow this URL:

• Microsoft Edge Stable Channel Release Notes

The Guyana National CIRT recommends that users and administrators review this update and apply it where necessary.

PDF Download:  Microsoft Edge Security

References

• Microsoft Edge Security Advisory (February 26th, 2026). Retrieved from Microsoft Edge. https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#february-26-2026
• Microsoft Edge Security Advisory. (February 27th, 2026). Retrieved from Canadian Centre for Cyber Security. https://cyber.gc.ca/en/alerts-advisories/microsoft-edge-security-advisory-av26-177