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CVE-2025-59147— Suricata is Vulnerable to Detection Bypass via Crafted Multiple SYN Packets

Quick assessment

Affected
OISF suricata
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata 7.0.11及之前版本和8.0.0版本存在安全特征问题漏洞，该漏洞源于处理特制流量时未能正确识别TCP会话，可能导致检测绕过。

CVSS 7.5 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 3 AI

T1063 T1564 · Hide Artifacts T1017
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I. Basic Information for CVE-2025-59147

Vulnerability Information
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Vulnerability Title
Suricata is Vulnerable to Detection Bypass via Crafted Multiple SYN Packets
Source: CVE Program / CVE List V5
Vulnerability Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 7.0.11 and below, as well as 8.0.0, are vulnerable to detection bypass when crafted traffic sends multiple SYN packets with different sequence numbers within the same flow tuple, which can cause Suricata to fail to pick up the TCP session. In IDS mode this can lead to a detection and logging bypass. In IPS mode this will lead to the flow getting blocked. This issue is fixed in versions 7.0.12 and 8.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当实现的标准安全检查
Source: CVE Program / CVE List V5
Vulnerability Title
Suricata 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata 7.0.11及之前版本和8.0.0版本存在安全特征问题漏洞，该漏洞源于处理特制流量时未能正确识别TCP会话，可能导致检测绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OISF suricata < 7.0.12 -

II. Public POCs for CVE-2025-59147

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7488 chars
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III. Intelligence Information for CVE-2025-59147

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Patches & Fixes for CVE-2025-59147 (2)

Vendor Advisories for CVE-2025-59147 (1)

Same Patch Batch · OISF · 2025-10-01 · 4 CVEs total

CVE-2025-59148 7.5 HIGH Suricata's improper use of entropy keyword can lead to a NULL-ptr deref
CVE-2025-59150 7.5 HIGH Suricata: Keyword tls.subjectaltname can lead to NULL-ptr deref
CVE-2025-59149 6.2 MEDIUM Suricata: Stack buffer overflow in rule parser when processing long keywords with transfor

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-358

V. Comments for CVE-2025-59147

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