CVE-2021-37740
Last modified
CVE-2021-37740 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 4.57% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mdt | Scn-Ip000.03 Firmware | < 3.0.4 |
| Mdt | Scn-Ip100.03 Firmware | < 3.0.4 |
References
- https://github.com/robertguetzkow/CVE-2021-37740Exploit, Release Notes, Third Party Advisory
- https://www.mdt.de/download/MDT_CL_SCN_IP_03_IP_Interface_Router.pdfRelease Notes, Vendor Advisory
- https://github.com/robertguetzkow/CVE-2021-37740Exploit, Release Notes, Third Party Advisory
- https://www.mdt.de/download/MDT_CL_SCN_IP_03_IP_Interface_Router.pdfRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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