AlertsApple Security Advisory

Number: AV21-467
Date: 20 September 2021

On 20 September 2021 Apple published Security Updates to address vulnerabilities in the following products:

  • iOS – versions prior to 15
  • iPadOS – versions prior to 15
  • watchOS – versions prior to 8
  • tvOS – versions prior to 15

Exploitation of these vulnerabilities could allow arbitrary code execution, denial-of-service or unauthorised access.

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

iOS and iPadOS



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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