AlertsApple Security Advisory

Number: AV21-582
Date: 12 November 2021

On 10 November 2021 Apple published a Security Update to address vulnerabilities in the following product:

  • iCloud for Windows – versions prior to 13

Exploitation of some of these vulnerabilities could result in arbitrary code execution.

The Cyber Centre encourages users and administrators to review the following web links and apply the necessary update.

Apple Security Update (HT212953)

Note to Readers

The Canadian Centre for Cyber Security (Cyber Centre) operates as part of the Communications Security Establishment.  We are Canada’s national authority on cyber security and we lead the government’s response to cyber security events. As Canada's national computer security incident response team, the Cyber Centre works in close collaboration with government departments, critical infrastructure, Canadian businesses and international partners to prepare for, respond to, mitigate, and recover from cyber events. We do this by providing authoritative advice and support, and coordinating information sharing and incident response. The Cyber Centre is outward-facing, welcoming partnerships that help build a stronger, more resilient cyber space in Canada.


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