CVE-2023-39945: Debian Linux

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.0, 2.10.2, 2.9.2, and 2.6.5, a data submessage sent to PDP port raises unhandled `BadParamException` in fastcdr, which in turn crashes fastdds. Versions 2.11.0, 2.10.2, 2.9.2, and 2.6.5 contain a patch for this issue.

Affected products

• Debian Debian Linux: version 11.0 only; version 12.0 only
• Eprosima Fast Dds: from 2.6.0, before 2.6.5 (fixed in 2.6.5); from 2.9.0, before 2.9.2 (fixed in 2.9.2); from 2.10.0, before 2.10.2 (fixed in 2.10.2)

Published 2023-08-11. Last modified 2026-06-17.