Cisco released security updates to address vulnerabilities in Cisco IOS, IOS XE, and AP software. A cyber threat actor could exploit some of these vulnerabilities to cause a denial-of-service.

CISA encourages users and administrators to review the following advisories and apply the necessary updates:

Cisco Event Response: March 2024 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication
Cisco Access Point Software Secure Boot Bypass Vulnerability
Cisco Access Point Software Denial of Service Vulnerability