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CVE-2021-31881

CVSS 7.1 · High EPSS 1.41% · P81
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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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Same Patch Batch · Siemens · 2021-11-09 · 25 CVEs total

CVE-2021-403589.9 CRITICALSiemens SIMATIC PCS 7和SIMATIC WinCC 路径遍历漏洞
CVE-2021-313468.2 HIGHSiemens Nucleus 安全漏洞
CVE-2021-403597.7 HIGHSiemens SIMATIC PCS 7和SIMATIC WinCC 路径遍历漏洞
CVE-2021-313457.5 HIGHSiemens Nucleus 安全漏洞
CVE-2021-318907.5 HIGHSiemens Nucleus ReadyStart 安全漏洞
CVE-2021-318897.5 HIGHSiemens Nucleus 数字错误漏洞
CVE-2021-318837.1 HIGHSiemens Nucleus ReadyStart 缓冲区错误漏洞
CVE-2021-318826.5 MEDIUMSiemens Nucleus 缓冲区错误漏洞
CVE-2021-403645.5 MEDIUMSiemens SIMATIC PCS 7和SIMATIC WinCC 日志信息泄露漏洞
CVE-2021-313445.3 MEDIUMSiemens Nucleus ReadyStart 安全漏洞
CVE-2021-31888Siemens Nucleus ReadyStart 缓冲区错误漏洞
CVE-2020-10052SIMATIC RTLS 日志信息泄露漏洞
CVE-2020-10053SIMATIC RTLS 安全漏洞
CVE-2020-10054SIMATIC RTLS 输入验证错误漏洞
CVE-2021-31884Siemens Nucleus ReadyStart 安全漏洞
CVE-2021-31885Siemens Nucleus ReadyStart 安全漏洞
CVE-2021-31886Siemens Nucleus ReadyStart 缓冲区错误漏洞
CVE-2021-42026Siemens Mendix 安全漏洞
CVE-2021-31887Siemens Nucleus ReadyStart 缓冲区错误漏洞
CVE-2021-37207Siemens Sentron Powermanager 安全漏洞

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Capital Embedded AR Classic 431-422
Same vendor: Siemens
Same weakness: CWE-125

V. Comments for CVE-2021-31881

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