{"cve":"CVE-2025-62799","nvd":{"published":"2026-02-03T20:15:56.983","modified":"2026-06-17T09:52:29.140","status":"Analyzed","description":"Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group\n). 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\nauthenticated sender can transmit a single malformed RTPS DATA_FRAG packet where `fragmentSize` and `sampleSize` are craft\ned to violate internal assumptions. Due to a 4-byte alignment step during fragment metadata initialization, the code write\ns past the end of the allocated payload buffer, causing immediate crash (DoS) and potentially enabling memory corruption (\nRCE risk). Versions 3.4.1, 3.3.1, and 2.6.11 patch the issue.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","score":7.2},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-787","CWE-122"],"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"],"products":["debian:debian_linux","eprosima:fast_dds"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2025-62799","score":0.0054,"percentile":0.4544,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}