On 4th May 2021, Apple released security updates to address vulnerabilities in multiple products. It is recommended that you take the necessary precautions by ensuring your products are always updated.
For more information on this update, you can follow the URLs:
https://support.apple.com/en-us/HT201222
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Apple Releases Security Updates.pdf
References