SEPTEMBER 29, 2026
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Case File

CVE-2026-63451

LOW · CVSS 3.3 Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-18 · Last synced 2026-09-29

CyberRota Analysis

AI-Generated

Suricata versions 8.0.0 to 8.0.6 are vulnerable to a locally triggered heap buffer overflow due to a specific detection rule configuration that can lead to a crash of the application. This vulnerability requires an attacker to have local access to supply the crafted rule, as it cannot be exploited through network traffic. Organizations using affected versions should prioritize upgrading to version 8.0.6 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-63451
Severity
LOW
CVSS
3.3
EPSS
N/A

Original NVD Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transformed match without content can make src/detect-engine-prefilter.c select multiple non-prefilter frame engines while preparing signatures for non-prefilter inspection. Loading the crafted rule, including in test mode, can trigger a heap buffer overflow and crash Suricata; network traffic alone cannot reach the flaw. This issue is fixed in version 8.0.6.

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