CVE-2019-9750

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

In IoTivity through 1.3.1, the CoAP server interface can be used for Distributed Denial of Service attacks using source IP address spoofing and UDP-based traffic amplification. The reflected traffic is 6 times bigger than spoofed requests. This occurs because the construction of a "4.01 Unauthorized" response is mishandled. NOTE: the vendor states "While this is an interesting attack, there is no plan for maintainer to fix, as we are migrating to IoTivity Lite."

Metrics

CVSS 3.0 9.1/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published
Mar 13, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2019-9750: Critical severity, CVSS 9.1 | Vulnix