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I. Basic Information for CVE-2021-31881
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303). When processing a DHCP OFFER message, the DHCP client application does not validate the length of the Vendor option(s), leading to Denial-of-Service conditions. (FSMD-2021-0008)
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Siemens Nucleus ReadyStart 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Siemens Nucleus ReadyStart是德国Siemens公司的一个捆绑式解决方案。用于加速完整系统的快速启动并提供丰富的板级支持包 (Bsp) Siemens Nucleus ReadyStart 存在缓冲区错误漏洞,该漏洞源于在处理 DHCP OFFER 消息时,DHCP 客户端应用程序不会验证供应商选项的长度,从而导致拒绝服务条件。
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
SiemensCapital Embedded AR Classic 431-422 0 ~ * -
SiemensCapital Embedded AR Classic R20-11 0 ~ V2303 -
II. Public POCs for CVE-2021-31881
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III. Intelligence Information for CVE-2021-31881
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IV. Related Vulnerabilities
V. Comments for CVE-2021-31881

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