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I. Basic Information for CVE-2026-3823
Vulnerability Information
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Vulnerability Title
Atop Technologies｜EHG2408 series switch - Stack-based Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
EHG2408 series switch developed by Atop Technologies has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.
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
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Atop EHG2408 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Atop EHG2408是中国上尚（Atop）公司的一系列以太网交换机。 Atop EHG2408存在安全漏洞，该漏洞源于nr modem中输入验证不当导致系统崩溃，可能导致远程拒绝服务攻击。
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
Atop TechnologiesEHG2408 0 ~ 3.36 -
Atop TechnologiesEHG2408-2SFP 0 ~ 3.36 -
II. Public POCs for CVE-2026-3823
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III. Intelligence Information for CVE-2026-3823
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IV. Related Vulnerabilities
Same weakness: CWE-121
V. Comments for CVE-2026-3823

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