{"id":"DEBIAN-CVE-2025-62799","details":"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.","modified":"2026-09-01T20:05:55.564527508Z","published":"2026-02-03T20:15:56.983Z","upstream":["CVE-2025-62799"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-62799"}],"affected":[{"package":{"name":"fastdds","ecosystem":"Debian:12","purl":"pkg:deb/debian/fastdds?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.1+ds-1","2.10.1+ds-2","2.10.1+ds-3","2.11.2+ds-1","2.11.2+ds-2","2.11.2+ds-3","2.11.2+ds-4","2.11.2+ds-5","2.11.2+ds-6","2.11.2+ds-6.1","2.11.2+ds-6.1~exp1","2.14.0+ds-1","2.14.0+ds-2","2.14.0+ds-3","2.14.0+ds-4","2.14.1+ds-1","2.14.2+ds-1","2.14.3+ds-1","2.9.1+ds-1","2.9.1+ds-1+deb12u1","2.9.1+ds-1+deb12u2","3.0.0+ds-1","3.0.0+ds-2","3.0.0+ds-3","3.0.1+ds-1","3.1.0+ds-1","3.1.0+ds-2","3.1.2+ds-1","3.3.0+ds-1","3.3.0+ds-2","3.3.0+ds-3","3.6.1+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62799.json"}},{"package":{"name":"fastdds","ecosystem":"Debian:13","purl":"pkg:deb/debian/fastdds?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.2+ds-1","3.3.0+ds-1","3.3.0+ds-2","3.3.0+ds-3","3.6.1+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62799.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}