Unrated severityNVD Advisory· Published Mar 4, 2026· Updated Mar 4, 2026
Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability
CVE-2026-20065
Description
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection.
This vulnerability is due to an error in the binder module initialization logic of the Snort Detection Engine. An attacker could exploit this vulnerability by sending certain packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly.
Affected products
3- Cisco/Cisco Secure Firewall Threat Defense (FTD) Softwarev5Range: 7.0.0
- Cisco/Cisco UTD SNORT IPS Engine Softwarev5Range: 17.3.1a
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
0No linked articles in our index yet.