Multiple Cisco Products Snort 3 Software Hardening Release: October 2026

Overview

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-20356 are related to issues concerning uncontrolled resource consumption that are grouped under the Common Weakness Enumeration (CWE) Base CWE-400.

Affected

• cyber_vision 3.0.0
• cyber_vision 3.0.2
• cyber_vision 3.0.3
• cyber_vision 3.0.1
• cyber_vision 3.1.0
• cyber_vision 3.0.4
• cyber_vision 3.1.1
• cyber_vision 3.1.2
• cyber_vision 3.2.0
• cyber_vision 3.0.5
• cyber_vision 3.2.1
• cyber_vision 3.0.6
• cyber_vision 3.2.2
• cyber_vision 3.2.3
• cyber_vision 3.2.4
• cyber_vision 4.0.0
• cyber_vision 4.0.1
• cyber_vision 4.0.2
• cyber_vision 4.0.3
• cyber_vision 4.1.0
• cyber_vision 4.1.1
• cyber_vision 4.1.2
• cyber_vision 4.1.3
• cyber_vision 4.1.4
• cyber_vision 4.2.0
• cyber_vision 4.2.1
• cyber_vision 4.1.5
• cyber_vision 4.2.2
• cyber_vision 4.2.X
• cyber_vision 4.2.3
• cyber_vision 4.2.4
• cyber_vision 4.2.6
• cyber_vision 4.1.6
• cyber_vision 4.3.0
• cyber_vision 4.3.1
• cyber_vision 4.3.2
• cyber_vision 4.3.3
• cyber_vision 4.4.0
• cyber_vision 4.4.1
• cyber_vision 4.4.2
• cyber_vision 4.4.3
• cyber_vision 4.1.7
• cyber_vision 5.0.0
• cyber_vision 5.0.1
• cyber_vision 5.0.2
• cyber_vision 5.1.0
• cyber_vision 5.1.1
• cyber_vision 5.1.2
• cyber_vision 5.1.3
• cyber_vision 5.2.0

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.