CVE-2025-62799CRITICAL 9.8EPSS p37.8%
CVE-2025-62799CVE-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.
Scoring
| CVSS 3.1 | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.48% probability of exploitation · percentile 37.8% · 2026-06-18T12:00:27Z |
| Published | 2026-02-03 |
| Last modified | 2026-02-18 |
Underlying weaknesses· 2
References
- https://github.com/eProsima/Fast-DDS/commit/0c3824ef4991628de5dfba240669dc6172d63b46
- https://github.com/eProsima/Fast-DDS/commit/955c8a15899dc6eb409e080fe7dc89e142d5a514
- https://github.com/eProsima/Fast-DDS/commit/d6dd58f4ecd28cd1c3bc4ef0467be9110fa94659
- https://security-tracker.debian.org/tracker/CVE-2025-62799
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Heap-based Buffer Overflowcwe-122 | 0% | live |
| Weakness | Out-of-bounds Writecwe-787 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.