CVE-2026-76504 | Cisco Catalyst SD-WAN Manager up to 18.4.3 API Authentication authentication bypass

September 30, 2026 Yanac

A vulnerability was found in Cisco Catalyst SD-WAN Manager and classified as very critical. This affects an unknown function of the component API Authentication. Executing a manipulation can lead to authentication bypass using alternate channel.

The identification of this vulnerability is CVE-2026-76504. The attack may be launched remotely. There is no exploit available.

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