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CVE-2025-5156— H3C GR-5400AX aspForm EditWlanMacList buffer overflow

Quick assessment

Affected
H3C GR-5400AX
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.

H3C GR-5400AX是中国新华三（H3C）公司的一款企业级Wi-Fi 6无线控制器。 H3C GR-5400AX 100R008及之前版本存在安全漏洞，该漏洞源于对文件/routing/goform/aspForm中参数param的错误操作导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.88% · P58
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I. Basic Information for CVE-2025-5156

Vulnerability Information
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Vulnerability Title
H3C GR-5400AX aspForm EditWlanMacList buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in H3C GR-5400AX up to 100R008 and classified as critical. Affected by this issue is the function EditWlanMacList of the file /routing/goform/aspForm. The manipulation of the argument param leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
H3C GR-5400AX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
H3C GR-5400AX是中国新华三（H3C）公司的一款企业级Wi-Fi 6无线控制器。 H3C GR-5400AX 100R008及之前版本存在安全漏洞，该漏洞源于对文件/routing/goform/aspForm中参数param的错误操作导致缓冲区溢出。
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
H3C GR-5400AX 100R008 -

II. Public POCs for CVE-2025-5156

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8562 chars
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III. Intelligence Information for CVE-2025-5156

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Other References for CVE-2025-5156 (1)

Same Patch Batch · H3C · 2025-05-25 · 4 CVEs total

CVE-2025-5159 4.3 MEDIUM H3C SecCenter SMP-E1114P02 download path traversal
CVE-2025-5158 4.3 MEDIUM H3C SecCenter SMP-E1114P02 downloadSoftware path traversal
CVE-2025-5157 4.3 MEDIUM H3C SecCenter SMP-E1114P02 fileContent path traversal

IV. Related Vulnerabilities

Same product: GR-5400AX
Same vendor: H3C
Same weakness: CWE-120

V. Comments for CVE-2025-5156

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