CVE-2021-38429

Name: CVE-2021-38429
Creator: NVD / NIST
Published: 2022-05-05T17:15:09.233+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.38%

Last modified Jun 17, 2026

CVE-2021-38429 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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 and information exposure.. EPSS estimates a 1.38% chance of exploitation in the next 30 days.

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 and information exposure.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS Probability

1.38%

68.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-406

Affected Software

Vendor	Product	Versions
Objectcomputing	Opendds	< 3.18.1

References

https://opendds.org/Product
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory, US Government Resource
https://opendds.org/Product
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory, US Government Resource

Timeline

Published: May 5, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38429?

How severe is CVE-2021-38429?

CVE-2021-38429 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38429?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-38429?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST