What’s Vulnerable › Vulnerabilities

CVE-2021-38447: OCI OpenDDS Secure Amplification

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-05 · updated 2026-06-17
• Weakness: CWE-405

Description

OCI OpenDDS versions prior to 3.18.1 are vulnerable when an attacker sends a specially crafted packet to flood target devices with unwanted traffic, which may result in a denial-of-service condition.

Affected products

• OpenDDS: before 3.18.1 — fixed in 3.18.1

How to fix

Upgrade to a fixed version: OpenDDS 3.18.1. Check the vendor advisory for mitigations.

References

• https://opendds.org/
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02
• https://opendds.org/
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02

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