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CVE-2025-59148— Suricata's improper use of entropy keyword can lead to a NULL-ptr deref

CVSS 7.5 · High EPSS 0.10% · P26
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I. Basic Information for CVE-2025-59148

Vulnerability Information
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Vulnerability Title
Suricata's improper use of entropy keyword can lead to a NULL-ptr deref
Source: NVD (National Vulnerability Database)
Vulnerability Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Versions 8.0.0 and below incorrectly handle the entropy keyword when not anchored to a "sticky" buffer, which can lead to a segmentation fault. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules using the entropy keyword, or validate they are anchored to a sticky buffer.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Suricata 代码问题漏洞
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 8.0.0及之前版本存在代码问题漏洞，该漏洞源于未锚定到粘性缓冲区时错误处理熵关键字，可能导致分段错误。
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

VendorProductAffected VersionsCPESubscribe
OISFsuricata < 8.0.1 -

II. Public POCs for CVE-2025-59148

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III. Intelligence Information for CVE-2025-59148

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

CVE-2025-591477.5 HIGHSuricata is Vulnerable to Detection Bypass via Crafted Multiple SYN Packets
CVE-2025-591507.5 HIGHSuricata: Keyword tls.subjectaltname can lead to NULL-ptr deref
CVE-2025-591496.2 MEDIUMSuricata: Stack buffer overflow in rule parser when processing long keywords with transfor

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-476

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