CVE-2026-22590
CriticalCVSS 9.1Summary
eprosima Fast DDS versions prior to 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 have a remotely triggerable Out-of-Bounds Read while processing RTPS DATA_FRAG submessages. An attacker can craft a DATA_FRAG with a large sampleSize but a small actual payload, leading to reading past the received UDP datagram buffer and copying adjacent heap memory into the reassembly buffer.
Risk Assessment
A remote attacker can cause leakage of heap memory fragments to other DDS network participants, potentially aiding ASLR bypass and further attacks.
Recommendation
Upgrade Fast DDS to one of the fixed versions (2.6.12, 2.14.6, 3.2.4, 3.3.1, or 3.4.2). If not possible, restrict trust to unknown network participants.
Other vulnerabilities in eprosima Fast DDS
See all- CVE-2025-67108Critical
eProsima Fast-DDS version 3.3 was found to have improper validation for ticket revocation, resulting in insecure communications and connections.
- CVE-2025-65865High
An integer overflow vulnerability in eProsima Fast-DDS version 3.3 allows an attacker to cause a Denial of Service (DoS) by sending crafted input.
- CVE-2023-39949High
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard. Prior to versions 2.9.1 and 2.6.5, improper validation of sequence numbers may lead to remotely reachable assertion failure.
- CVE-2023-39948High
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard. In versions prior to 2.10.0 and 2.6.5, the `BadParamException` thrown by Fast CDR is not caught in Fast DDS, which can remotely crash any Fast DDS process.
- CVE-2023-39947High
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard. In versions prior to 2.11.1, 2.10.2, 2.9.2, and 2.6.6, malformed `PID_PROPERTY_LIST` parameters can cause heap overflow at a different program counter, potentially crashing any Fast-DDS process remotely.
- CVE-2023-39946High
eprosima Fast DDS prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6 is vulnerable to heap overflow caused by the PID_PROPERTY_LIST parameter containing a CDR string longer than the actual content size. This vulnerability can lead to remote crashes of any Fast-DDS process.
- CVE-2023-39945High
In eprosima Fast DDS, prior to versions 2.11.0, 2.10.2, 2.9.2, and 2.6.5, a vulnerability exists that raises an unhandled `BadParamException` in fastcdr, leading to a crash of fastdds.
- CVE-2023-39534High
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard. In versions prior to 2.10.0, 2.9.2, and 2.6.5, a malformed GAP submessage can trigger assertion failure, crashing FastDDS.
Original NVD description (English source)
eprosima Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). Versions prior to 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 have a remotely triggerable Out-of-Bounds Read while processing RTPS `DATA_FRAG` submessages. An attacker can craft a `DATA_FRAG` with a large `sampleSize` but a small actual payload, and set `fragmentsInSubmessage` such that the receiver treats the packet as the LAST fragment**. In this LAST-fragment path, Fast-DDS computes `incoming_length` based on `sampleSize` and calls `memcpy()` without validating `incoming_data.length >= incoming_length`. As a result, `CacheChange_t::add_fragments()` reads past the received UDP datagram buffer and into adjacent heap memory, copying those bytes into the reassembly buffer. In a Discovery Server deployment, the resulting `CacheChange_t` can be relayed to other participants, meaning that a newly joining participant may receive leaked heap memory (e.g., pointer values that could aid ASLR bypass). Versions 2.6.12, 2.14.6, 3.2.4, 3.3.1, and 3.4.2 fix the issue.