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I. Basic Information for CVE-2026-4227
Vulnerability Information

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Vulnerability Title
LB-LINK BL-WR9000 get_hidessid_cfg sub_44D844 buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security vulnerability has been detected in LB-LINK BL-WR9000 2.4.9. The impacted element is the function sub_44D844 of the file /goform/get_hidessid_cfg. The manipulation leads to buffer overflow. It is possible to initiate the attack 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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
LB-LINK BL-WR9000 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LB-LINK BL-WR9000是中国必联(LB-LINK)公司的一款无线路由器。 LB-LINK BL-WR9000 2.4.9版本存在安全漏洞,该漏洞源于对文件/goform/get_hidessid_cfg中函数sub_44D844的操作导致缓冲区溢出,可能导致远程执行任意代码。
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
VendorProductAffected VersionsCPESubscribe
LB-LINKBL-WR9000 2.4.9 -
II. Public POCs for CVE-2026-4227
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 6892 chars
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III. Intelligence Information for CVE-2026-4227
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IV. Related Vulnerabilities
V. Comments for CVE-2026-4227

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