Number: AV21-123
Date: 16 March 2021
On 15 March 2021 Microsoft published an out-of-band Security Update to address vulnerabilities in the following product:
- Microsoft Edge – versions prior to 89.0.774.54
The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary update.
Microsoft Edge
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-21191
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-21192
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-21193
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.