CVE-2025-62799
Description
Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a heap buffer overflow exists in the Fast-DDS DATA_FRAG receive path. An un authenticated sender can transmit a single malformed RTPS DATA_FRAG packet where `fragmentSize` and `sampleSize` are craft ed to violate internal assumptions. Due to a 4-byte alignment step during fragment metadata initialization, the code write s past the end of the allocated payload buffer, causing immediate crash (DoS) and potentially enabling memory corruption ( RCE risk). Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.
How to fix
- eprosima fast_dds2.6.11, 3.3.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| eprosima fast_dds | v < 2.6.11, 3.0.0 ≤ v < 3.3.1, 3.4.0 | 2.6.11, 3.3.1 |
| debian debian_linux | 11.0, 12.0, 13.0 | — |
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