Security Advisories February 2026 #5

Cisco has published critical Security Advisories for the following products:

• Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
• Cisco Catalyst SD-WAN Vulnerabilities
• Cisco Nexus 9000 Series Fabric Switches in ACI Mode SNMP Denial of Service Vulnerability
• Cisco Nexus 3600 and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability
• Cisco Nexus 9000 Series Fabric Switches in ACI Mode Denial of Service Vulnerability
• Cisco NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability

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