CVE-2025-62799
February 03, 2026
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.
Affected Packages
https://github.com/eProsima/Fast-DDS.git (GITHUB):
Affected version(s) >=v0.3.0 <v2.6.11Fix Suggestion:
Update to version v2.6.11https://github.com/eProsima/Fast-DDS.git (GITHUB):
Affected version(s) =v3.3.0 <v3.3.1Fix Suggestion:
Update to version v3.3.1https://github.com/eProsima/Fast-DDS.git (GITHUB):
Affected version(s) =v3.4.0 <v3.4.1Fix Suggestion:
Update to version v3.4.1Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.01
