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CVE-2025-64330— Suricata is vulnerable to a heap buffer overflow on verdict

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 7.0.13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eve.alert和eve.drop时存在堆溢出，可能导致崩溃。

CVSS 7.5 · High EPSS 0.37% · P30
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I. Basic Information for CVE-2025-64330

Vulnerability Information
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Vulnerability Title
Suricata is vulnerable to a heap buffer overflow on verdict
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 single byte read heap overflow when logging the verdict in eve.alert and eve.drop records can lead to crashes. This requires the per packet alert queue to be filled with alerts and then followed by a pass rule. This issue has been patched in versions 7.0.13 and 8.0.2. To reduce the likelihood of this issue occurring, the alert queue size a should be increased (packet-alert-max in suricata.yaml) if verdict is enabled.
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
堆缓冲区溢出
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eve.alert和eve.drop时存在堆溢出，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-2025-64330

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8273 chars
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III. Intelligence Information for CVE-2025-64330

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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-2025-64333 7.5 HIGH Suricata is vulnerable to a stack overflow from big content-type
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-2025-64344 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-122

V. Comments for CVE-2025-64330

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