CVE-2026-20020 | Cisco Secure Firewall Threat Defense Software OSPF Protocol denial of service (cisco-sa-asaftd-ospf-ZH8PhbSW)

A vulnerability classified as critical has been found in Cisco Secure Firewall Threat Defense Software. Affected is an unknown function of the component OSPF Protocol Handler. The manipulation leads to denial of service.

This vulnerability is traded as CVE-2026-20020. Access to the local network is required for this attack to succeed. There is no exploit available.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More