CVE-2026-20179 | Cisco Open Source Snort3 GRE Detection Engine input validation

October 21, 2026 Yanac

A vulnerability described as critical has been identified in Cisco Open Source Snort3, Secure Firewall Threat Defense Software and UTD SNORT IPS Engine Software. This impacts an unknown function of the component GRE Detection Engine. The manipulation results in improper input validation.

This vulnerability is cataloged as CVE-2026-20179. The attack may be launched remotely. There is no exploit available.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More