Original release date: May 19, 2021 | Last revised: May 20, 2021
Cisco has released security updates to address vulnerabilities in multiple Cisco products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page.
CISA encourages users and administrators to review the following Cisco advisories and apply the necessary updates: