CVE Vulnerabilities

CVE-2021-38487

Insufficient Control of Network Message Volume (Network Amplification)

Published: May 05, 2022 | Modified: Jun 23, 2025
CVSS 3.x
9.1
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.x
6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
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RTI Connext Professional versions 4.1 to 6.1.0, and Connext Micro versions 2.4 and later are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic. This may result in a denial-of-service condition and information exposure.

Weakness

The product does not sufficiently monitor or control transmitted network traffic volume, so that an actor can cause the product to transmit more traffic than should be allowed for that actor.

Affected Software

NameVendorStart VersionEnd Version
Connext_dds_microRti2.4 (including)*
Connext_professionalRti4.2 (including)6.1.0 (excluding)
Connext_secureRti4.2 (including)6.1.0 (excluding)

Potential Mitigations

References