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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Rti
  • Connext Dds Micro
  • Connext Professional
  • Connext Secure

Configuration 1 [-]

OR cpe:2.3:a:rti:connext_dds_micro:*:*:*:*:*:*:*:*
cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*
cpe:2.3:a:rti:connext_secure:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F cve-icon cve-icon
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02 cve-icon cve-icon
https://www.rti.com/vulnerabilities/#cve-2021-38487 cve-icon cve-icon
History

Mon, 23 Jun 2025 12:15:00 +0000

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'}

Wed, 16 Apr 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Wed, 05 Feb 2025 13:45:00 +0000

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
cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2022-05-05T15:18:41.000Z

Updated: 2025-06-23T12:13:04.553Z

Reserved: 2021-08-10T00:00:00.000Z

Link: CVE-2021-38487

cve-icon Vulnrichment

Updated: 2024-08-04T01:44:22.948Z

cve-icon NVD

Status : Modified

Published: 2022-05-05T17:15:09.857

Modified: 2025-06-23T12:15:21.893

Link: CVE-2021-38487

cve-icon Redhat

No data.