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CVE-2025-59149— Suricata: Stack buffer overflow in rule parser when processing long keywords with transforms

Quick assessment

Affected
OISF suricata
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 8.0.0版本存在安全漏洞，该漏洞源于使用ldap.responses.attribute_type关键字和转换可能导致堆栈缓冲区溢出。

CVSS 6.2 · Medium EPSS 0.20% · P9
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I. Basic Information for CVE-2025-59149

Vulnerability Information
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Vulnerability Title
Suricata: Stack buffer overflow in rule parser when processing long keywords with transforms
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. In version 8.0.0, rules using keyword ldap.responses.attribute_type (which is long) with transforms can lead to a stack buffer overflow during Suricata startup or during a rule reload. This issue is fixed in version 8.0.1. To workaround this issue, users can disable rules with ldap.responses.attribute_type and transforms.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Suricata 安全漏洞
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版本存在安全漏洞，该漏洞源于使用ldap.responses.attribute_type关键字和转换可能导致堆栈缓冲区溢出。
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 >= 8.0.0, < 8.0.1 -

II. Public POCs for CVE-2025-59149

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III. Intelligence Information for CVE-2025-59149

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Patches & Fixes for CVE-2025-59149 (1)

Vendor Advisories for CVE-2025-59149 (2)

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

CVE-2025-59147 7.5 HIGH Suricata is Vulnerable to Detection Bypass via Crafted Multiple SYN Packets
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

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-121

V. Comments for CVE-2025-59149

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