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CVE-2026-6560— H3C Magic B0 aspForm Edit_BasicSSID buffer overflow

Quick assessment

Affected
H3C Magic B0
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.

H3C Magic B0是中国新华三（H3C）公司的一款小型无线路由器。 H3C Magic B0 100R002及之前版本存在安全漏洞，该漏洞源于对文件/goform/aspForm中参数param的操作，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.48% · P42

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-6560

Vulnerability Information
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Vulnerability Title
H3C Magic B0 aspForm Edit_BasicSSID buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in H3C Magic B0 up to 100R002. This vulnerability affects the function Edit_BasicSSID of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly 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 Magic B0 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
H3C Magic B0是中国新华三（H3C）公司的一款小型无线路由器。 H3C Magic B0 100R002及之前版本存在安全漏洞，该漏洞源于对文件/goform/aspForm中参数param的操作，可能导致缓冲区溢出。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
H3C Magic B0 100R002 -

II. Public POCs for CVE-2026-6560

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III. Intelligence Information for CVE-2026-6560

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News Coverage for CVE-2026-6560 (1)

Same Patch Batch · H3C · 2026-04-19 · 3 CVEs total

CVE-2026-6581 8.8 HIGH H3C Magic B1 aspForm SetMobileAPInfoById buffer overflow
CVE-2026-6563 8.8 HIGH H3C Magic B1 aspForm SetAPWifiorLedInfoById buffer overflow

IV. Related Vulnerabilities

Same product: Magic B0
Same vendor: H3C
Same weakness: CWE-120