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I. Basic Information for CVE-2025-41702
Vulnerability Information
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Vulnerability Title
egOS WebGUI Hard-Coded JWT Secret Enables Authentication Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
The JWT secret key is embedded in the egOS WebGUI backend and is readable to the default user. An unauthenticated remote attacker can generate valid HS256 tokens and bypass authentication/authorization due to the use of hard-coded cryptographic key.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用硬编码的密码学密钥
Source: NVD (National Vulnerability Database)
Vulnerability Title
Welotec多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Welotec EG400Mk2 series和Welotec EG500Mk2 series都是德国Welotec公司的一系列边缘IoT计算网关。 Welotec多款产品存在安全漏洞，该漏洞源于JWT密钥硬编码在egOS WebGUI后端，可能导致绕过身份验证和授权。以下产品受到影响：EG400Mk2-D11001-000101、EG503W、EG503L、EG503W_4GB等。
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
WelotecEG400Mk2-D11001-000101 0.0.0 ~ v1.7.7 -
WelotecEG400Mk2-D11101-000101 0.0.0 ~ v1.7.7 -
WelotecEG503W 0.0.0 ~ v1.7.7 -
WelotecEG503L 0.0.0 ~ v1.7.7 -
WelotecEG503W_4GB 0.0.0 ~ v1.7.7 -
WelotecEG503L_4GB 0.0.0 ~ v1.7.7 -
WelotecEG503L-G 0.0.0 ~ v1.7.7 -
WelotecEG500Mk2-A11101-000101 0.0.0 ~ v1.7.7 -
WelotecEG500Mk2-A11001-000101 0.0.0 ~ v1.7.7 -
WelotecEG500Mk2-B11101-000101 0.0.0 ~ <v1.7.7 -
WelotecEG500Mk2-B11001-000101 0.0.0 ~ <v1.7.7 -
WelotecEG500Mk2-C11101-000101 0.0.0 ~ <v1.7.7 -
WelotecEG500Mk2-C11001-000101 0.0.0 ~ <v1.7.7 -
WelotecEG500Mk2-A12011-000101 0.0.0 ~ <v1.7.7 -
WelotecEG500Mk2-A11001-000201 0.0.0 ~ <v1.7.7 -
WelotecEG500Mk2-A21101-000101 0.0.0 ~ <v1.7.7 -
WelotecEG602W 0.0.0 ~ <v1.7.7 -
WelotecEG602L 0.0.0 ~ <v1.7.7 -
WelotecEG603W Mk2 0.0.0 ~ <v1.7.7 -
WelotecEG603L Mk2 0.0.0 ~ <v1.7.7 -
WelotecEG802W 0.0.0 ~ <v1.7.7 -
WelotecEG804W 0.0.0 ~ <v1.7.7 -
WelotecEG802W_i7_512GB_DinRail 0.0.0 ~ <v1.7.7 -
WelotecEG802W_i7_512GB_w/o DinRail 0.0.0 ~ <v1.7.7 -
WelotecEG804W Pro 0.0.0 ~ <v1.7.7 -
II. Public POCs for CVE-2025-41702
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III. Intelligence Information for CVE-2025-41702
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IV. Related Vulnerabilities
Same vendor: Welotec
Same weakness: CWE-321
V. Comments for CVE-2025-41702

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