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.
Metrics
Affected Vendors & Products
References
History
Tue, 03 Feb 2026 21:15:00 +0000
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Tue, 03 Feb 2026 19:45:00 +0000
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| 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. | |
| Title | FastDDS's heap buffer overflow in RTPS DATA_FRAG enables unauthenticated DoS (potential RCE) | |
| Weaknesses | CWE-122 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-02-03T20:40:35.185Z
Reserved: 2025-10-22T18:55:48.012Z
Link: CVE-2025-62799
Updated: 2026-02-03T20:40:32.293Z
Status : Received
Published: 2026-02-03T20:15:56.983
Modified: 2026-02-03T20:15:56.983
Link: CVE-2025-62799
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OpenCVE Enrichment
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