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I. Basic Information for CVE-2026-2548
Vulnerability Information

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Vulnerability Title
WAYOS FBM-220G rc sub_40F820 command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in WAYOS FBM-220G 24.10.19. This affects the function sub_40F820 of the file rc. Executing a manipulation of the argument upnp_waniface/upnp_ssdp_interval/upnp_max_age can lead to command injection. The attack can be executed remotely. 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:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WAYOS FBM-220G 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WAYOS FBM-220G是中国维盟(WAYOS)公司的一个上网行为管理路由器。 WAYOS FBM-220G 24.10.19版本存在安全漏洞,该漏洞源于文件rc中函数sub_40F820对参数upnp_waniface/upnp_ssdp_interval/upnp_max_age的操作不当,可能导致命令注入攻击。
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
WAYOSFBM-220G 24.10.19 -
II. Public POCs for CVE-2026-2548
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III. Intelligence Information for CVE-2026-2548
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