# CVE-2023-39948: fastdds-tools: eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group

CVE-2023-39948 is fixed in 3 products on 1 platform, first by fastdds-tools 2.5.0+ds-3ubuntu0.1~esm1, released August 11, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-39948
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0104
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 11, 2023

## Description

eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.10.0 and 2.6.5, the `BadParamException` thrown by Fast CDR is not caught in Fast DDS. This can remotely crash any Fast DDS process. Versions 2.10.0 and 2.6.5 contain a patch for this issue.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | fastdds Debian 12.15 (bookworm) | 2.9.1+ds-1+deb12u1 | [DEBIAN-CVE-2023-39948](https://patchblox.com/security/data/fix/linux/debian-cve-2023-39948.md) | Aug 11, 2023 |
| Linux | fastdds Debian 13.5 (trixie) | 2.10.1+ds-2 | [DEBIAN-CVE-2023-39948](https://patchblox.com/security/data/fix/linux/debian-cve-2023-39948.md) | Aug 11, 2023 |
| Linux | fastdds-tools Ubuntu 22.04.1 LTS (jammy) | 2.5.0+ds-3ubuntu0.1~esm1 | [fastdds-tools 2.5.0+ds-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-fastdds-tools-2.5.0-ds-3ubuntu0.1-esm1.md) | Aug 11, 2023 |
| Linux | libfastrtps2.5 Ubuntu 22.04.1 LTS (jammy) | 2.5.0+ds-3ubuntu0.1~esm1 | [libfastrtps2.5 2.5.0+ds-3ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libfastrtps2.5-2.5.0-ds-3ubuntu0.1-esm1.md) | Aug 11, 2023 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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