CVE-2023-42459

Name: CVE-2023-42459
Creator: NVD / NIST
Published: 2023-10-16T21:15:10.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2023-42459 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). In affected versions specific DATA submessages can be sent to a discovery locator which may trigger a free error. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). In affected versions specific DATA submessages can be sent to a discovery locator which may trigger a free error. This can remotely crash any Fast-DDS process. The call to free() could potentially leave the pointer in the attackers control which could lead to a double free. This issue has been addressed in versions 2.12.0, 2.11.3, 2.10.3, and 2.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.83%

52.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Eprosima	Fast Dds	< 2.6.7
Eprosima	Fast Dds	>= 2.10.0, < 2.10.3
Eprosima	Fast Dds	>= 2.11.0, <= 2.11.1

References

https://github.com/eProsima/Fast-DDS/issues/3207Exploit, Issue Tracking
https://github.com/eProsima/Fast-DDS/pull/3824Patch
https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-gq8g-fj58-22gmVendor Advisory
https://www.debian.org/security/2023/dsa-5568Mailing List
https://github.com/eProsima/Fast-DDS/issues/3207Exploit, Issue Tracking
https://github.com/eProsima/Fast-DDS/pull/3824Patch
https://github.com/eProsima/Fast-DDS/security/advisories/GHSA-gq8g-fj58-22gmVendor Advisory
https://www.debian.org/security/2023/dsa-5568Mailing List

Timeline

Published: Oct 16, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-42459?

How severe is CVE-2023-42459?

CVE-2023-42459 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2023-42459?

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-2023-42459?

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

Scan your code now

Source: NVD / NIST