robertguetzkow/CVE-2021-37740

robertguetzkow/CVE-2021-37740

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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.
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CVE History

CVEPublishedCVSS v3CVSS v2
CVE-2021-37740↗
7.5 HIGH7.8 HIGH

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.