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CVE-2021-37740

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MDT KNXnet/IP Secure router和MDT KNX IP interface都是德国MDT公司的产品。MDT KNXnet/IP Secure router是一系列安全路由器。MDT KNX IP interface是一个接口。将 KNX 总线与以太网连接起来。 MDT KNXnet/IP Secure router SCN-IP100.03 和 KNX IP interface SCN-IP000.03 存在安全漏洞。远程攻击者通过发送修改了总长度字段的 SESSION_REQUES

AI Predicted 7.5 Difficulty: Trivial EPSS 4.51% · P91

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-37740

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service vulnerability exists in MDT's firmware for the KNXnet/IP Secure router SCN-IP100.03 and KNX IP interface SCN-IP000.03 before v3.0.4, that allows a remote attacker to turn the device unresponsive to all requests on the KNXnet/IP Secure layer, until the device is rebooted, via a SESSION_REQUEST frame with a modified total length field.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
MDT KNXnet/IP Secure router和MDT KNX IP interface 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MDT KNXnet/IP Secure router和MDT KNX IP interface都是德国MDT公司的产品。MDT KNXnet/IP Secure router是一系列安全路由器。MDT KNX IP interface是一个接口。将 KNX 总线与以太网连接起来。 MDT KNXnet/IP Secure router SCN-IP100.03 和 KNX IP interface SCN-IP000.03 存在安全漏洞。远程攻击者通过发送修改了总长度字段的 SESSION_REQUES
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

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-37740

# POC Description Source Link Shenlong Link
1 PoC for DoS vulnerability CVE-2021-37740 in firmware v3.0.3 of SCN-IP100.03 and SCN-IP000.03 by MDT. The bug has been fixed in firmware v3.0.4. https://github.com/robertguetzkow/CVE-2021-37740 POC Details
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III. Intelligence Information for CVE-2021-37740

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Other References for CVE-2021-37740 (3)

Same Patch Batch · n/a · 2022-04-20 · 22 CVEs total

CVE-2022-29537 GPAC 缓冲区错误漏洞
CVE-2022-27926 Zimbra 安全漏洞
CVE-2022-27925 Zimbra Collaboration Suite 路径遍历漏洞
CVE-2022-27924 Zimbra 注入漏洞
CVE-2022-29536 GNOME Epiphany 缓冲区错误漏洞
CVE-2021-43481 webTareas SQL注入漏洞
CVE-2022-0567 ovn-kubernetes 安全特征问题漏洞
CVE-2022-25344 Kyocera d-COLOR MF3555 跨站脚本漏洞
CVE-2022-25343 Kyocera d-COLOR MF3555 安全漏洞
CVE-2022-25342 Kyocera d-COLOR MF3555 安全漏洞
CVE-2022-29527 Amazon AWS 安全漏洞
CVE-2022-24675 Google Go 安全漏洞
CVE-2022-29534 MISP 授权问题漏洞
CVE-2022-29533 MISP 跨站脚本漏洞
CVE-2022-29532 MISP 跨站脚本漏洞
CVE-2022-29531 MISP 跨站脚本漏洞
CVE-2022-29530 MISP 跨站脚本漏洞
CVE-2022-29529 MISP 跨站脚本漏洞
CVE-2022-29528 MISP 代码问题漏洞
CVE-2022-28327 Google Go 安全漏洞

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-37740

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