CVE-2026-76489 | Cisco Snort 3/Threat Defense Software Memory Management denial of service

October 21, 2026 Yanac

A vulnerability was found in Cisco Snort 3 and Threat Defense Software. It has been declared as critical. This impacts an unknown function of the component Memory Management. Executing a manipulation can lead to denial of service.

This vulnerability is handled as CVE-2026-76489. The attack can be executed remotely. There is not any exploit available.

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