Security Advisories March 2026 #3

Cisco has published HIGH-IMPACT Security Advisories for the following products:

• Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family CAPWAP Denial of Service Vulnerability
• Cisco IOS, IOS XE, Secure Firewall Adaptive Security Appliance, and Secure Firewall Threat Defense Software IKEv2 Denial of Service Vulnerability
• Cisco IOS XE Software TLS Memory Exhaustion Denial of Service Vulnerability
• Cisco IOS Software and IOS XE Software Release 3E HTTP Server Denial of Service Vulnerability
• Cisco IOS XE Software for Catalyst 9000 Series Switches DHCP Snooping Denial of Service Vulnerability

For details and updates please visit the corresponding CISCO SECURITY ADVISORY or contact us via support@nts.eu.