CVE-2021-38487

Potential Network Amplification and Information Exposure in RTI Connext Professional and Connext Micro

Published May 5, 2022 CVSS 4.0 · 8.8 High EPSS 3.4% KEV · Not listed
Description
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.

Remediation

Vendor Solution

RTI recommends users apply the available patches for these issues. A patch is available on the RTI customer portal or by contacting RTI Support. Also, contact RTI Support for mitigations, including how to use RTI DDS Secure to mitigate against the network amplification issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-24939 RTI Connext DDS Professional, Connext DDS Secure versions 4.2x to 6.1.0, and Connext DDS 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.
History
Type Values Removed Values Added
Description RTI Connext DDS Professional, Connext DDS Secure versions 4.2x to 6.1.0, and Connext DDS 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. 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.
Title RTI Connext DDS Professional and Connext DDS Secure Network Amplification Potential Network Amplification and Information Exposure in RTI Connext Professional and Connext Micro
Weaknesses CWE-923
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Rti connext Professional
Rti connext Secure
CPEs cpe:2.3:a:rti:connext_dds_professional:*:*:*:*:*:*:*:*
cpe:2.3:a:rti:connext_dds_secure:*:*:*:*:*:*:*:*
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
cpe:2.3:a:rti:connext_secure:*:*:*:*:*:*:*:*
Vendors & Products Rti connext Dds Professional
Rti connext Dds Secure
Rti connext Professional
Rti connext Secure
Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Jun 23, 2025, 12:13 PM
Reserved
Aug 10, 2021, 12:00 AM
Status
Modified
Published
May 5, 2022, 5:15 PM
Modified
Jun 17, 2026, 4:02 AM