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CVE-2025-64333— Suricata is vulnerable to a stack overflow from big content-type

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 7.0.13之前版本和8.0.2之前版本存在安全漏洞，该漏洞源于记录大型HTTP内容类型时存在栈溢出，可能导致崩溃。

CVSS 7.5 · High EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2025-64333

Vulnerability Information
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Vulnerability Title
Suricata is vulnerable to a stack overflow from big content-type
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. Prior to versions 7.0.13 and 8.0.2, a large HTTP content type, when logged can cause a stack overflow crashing Suricata. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves limiting stream.reassembly.depth to less then half the stack size. Increasing the process stack size makes it less likely the bug will trigger.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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 7.0.13之前版本和8.0.2之前版本存在安全漏洞，该漏洞源于记录大型HTTP内容类型时存在栈溢出，可能导致崩溃。
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 < 7.0.13 -

II. Public POCs for CVE-2025-64333

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III. Intelligence Information for CVE-2025-64333

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Same Patch Batch · OISF · 2025-11-26 · 7 CVEs total

CVE-2025-64335 7.5 HIGH Suricata is vulnerable to a null deref when used with base64_data
CVE-2025-64334 7.5 HIGH Suricata is vulnerable to unbounded memory growth for decompression
CVE-2025-64331 7.5 HIGH Suricata is vulnerable to a stack overflow on large file transfers with http-body-printabl
CVE-2025-64332 7.5 HIGH Suricata is vulnerable to a stack overflow on larger compressed data
CVE-2025-64330 7.5 HIGH Suricata is vulnerable to a heap buffer overflow on verdict
CVE-2025-64344 7.5 HIGH Suricata is vulnerable to a stack overflow from unbounded stack allocation in LuaPushStrin

IV. Related Vulnerabilities

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

V. Comments for CVE-2025-64333

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