Apple has published a security advisory, highlighting vulnerabilities in multiple versions listed below on the 23rd of September 2021. It is recommended that you take the necessary precaution by ensuring your products are always updated.
iOS 12.5.5
2021-006 Catalina
For more information on these Apple updates, you can follow these URLs:
https://support.apple.com/en-us/HT212824
https://support.apple.com/en-us/HT212825
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Apple Security Advisory.pdf
References
Apple security updates (23rd September 2021). Retrieved from Cybersecurity & Infrastructure Security Agency.
https://us-cert.cisa.gov/ncas/current-activity/2021/09/23/apple-releases- security-updates
Apple security updates (23rd September 2021). Retrieved from Apple.
https://support.apple.com/en-us/HT201222