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CVE-2021-37740

nvd nist
Published: Apr 20, 2022Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

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.

Affected (2)

Mdt
2 products
Scn Ip000.03 Firmware
Scn Ip100.03 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Scn Ip000.03 Firmware
Before 3.0.4
Running on/withPlatform Versions
Mdt
Scn Ip000.03
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Scn Ip100.03 Firmware
Before 3.0.4
Running on/withPlatform Versions
Mdt
Scn Ip100.03
All versions

References (6)

Source: cve@mitre.org
ExploitRelease NotesThird Party Advisory
Source: cve@mitre.org
Broken Link
Source: cve@mitre.org
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitRelease NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory

Timeline

No history available yet.