Cisco has released security updates to address vulnerabilities in multiple Cisco products. An attacker could exploit one of these vulnerabilities to take control of an affected system.

Users are encouraged to review the following Cisco advisories and apply the necessary updates:

A high-severity vulnerability in the Lasso library affecting Cisco products – CVE-2021-28091

Cisco ASR 5000 Series software authorization bypass vulnerabilities - CVE-2021-1539, CVE-2021-1540

Cisco SD-WAN software privilege escalation vulnerability – CVE-2021-1528

Cisco Webex memory corruption vulnerabilities – CVE-2021-1502 , CVE-2021-1503 , CVE-2021-1526.