Stack Overflow Vulnerability in Suricata Network IDS and IPS

CVE-2026-22262

What is CVE-2026-22262?

CVE-2026-22262 is a stack overflow vulnerability identified in Suricata, an open-source network intrusion detection and prevention system (IDS/IPS) widely used for threat detection and network security monitoring (NSM). The vulnerability arises when saving datasets that exceed the allocated stack size, leading to potential application crashes or unauthorized access. This flaw impacts versions prior to 8.0.3 and 7.0.14, which means systems running these versions are at increased risk, making it crucial for organizations to understand and mitigate potential risks stemming from this vulnerability.

Potential impact of CVE-2026-22262

1. System Instability: The stack overflow can lead to crashes in the Suricata service, disrupting network monitoring and protection capabilities. This instability can leave networks vulnerable to various attacks during the downtime.

2. Data Corruption: Exploitation of this vulnerability may result in the corruption of datasets or unintended data manipulation, which could compromise the integrity of security logs and other critical network data.

3. Unauthorized Access: If an attacker can exploit the stack overflow, it may allow them to execute arbitrary code or commands, leading to unauthorized access to sensitive network resources and potential data breaches.

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