CVEvulnerability

CVE-2021-37740

7.5 HIGH Published 2022-04-20 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-04-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C

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 configurations

• mdt scn-ip000.03 firmware (< 3.0.4) • mdt scn-ip100.03 firmware (< 3.0.4)

References