Product:
Snort 3 Detection Engine
Summary
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. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly.
Details
| Severity | Base Score | CVE |
|---|---|---|
| MEDIUM | 5.8 | CVE-2026-20065 |
Exploitation
An attacker could exploit this vulnerability by sending certain packets through an established connection that is parsed by Snort 3. By carefully crafting these packets, the attacker can trigger the error in the binder module initialization logic, leading to an unexpected restart of the Snort 3 Detection Engine and causing a denial of service.
Affected Products
- Snort 3 Detection Engine: Vulnerable to DoS attacks due to initialization logic errors.
Mitigation
To mitigate this vulnerability, users should ensure that they are using the latest version of the Snort 3 Detection Engine and apply any available patches. Regular monitoring of network traffic and implementing additional security measures can also help reduce the risk of exploitation.