Vulnerability · Published Feb 3, 2026 · Assigned by GitHub_M
CVE-2025-64098FastDDS has Out-of-memory in readOctetVector via Manipulated DATA Submessage when DDS Security is enabled
Low 1.7
In plain English
A low-severity out-of-bounds read in Fast-DDS from eProsima. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Official 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, when the security mode is enabled, modifying the DATA Submessage within an SPDP packet sent by a publisher causes an Out-Of-Memory (OOM) condition, resulting in remote termination of Fast-DDS. If t he fields of `PID_IDENTITY_TOKEN` or `PID_PERMISSIONS_TOKEN` in the DATA Submessage are tampered with — specifically by ta mpering with the the `vecsize` value read by `readOctetVector` — a 32-bit integer overflow can occur, causing `std::vector ::resize` to request an attacker-controlled size and quickly trigger OOM and remote process termination. Versions 3.4.1, 3 .3.1, and 2.6.11 patch the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | fastdds | no fix listed | DEBIAN-CVE-2025-64098 |
| Debian:13 | fastdds | no fix listed | DEBIAN-CVE-2025-64098 |
| Ubuntu:24.04:LTS | fastdds | no fix listed | UBUNTU-CVE-2025-64098 |
| Ubuntu:25.10 | fastdds | no fix listed | UBUNTU-CVE-2025-64098 |
| Ubuntu:26.04:LTS | fastdds | no fix listed | UBUNTU-CVE-2025-64098 |
| Ubuntu:26.10 | fastdds | no fix listed | UBUNTU-CVE-2025-64098 |
Affected products (as reported)
Weakness: CWE-125, CWE-190 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
References
- https://security-tracker.debian.org/tracker/CVE-2025-64098
- https://github.com/eProsima/Fast-DDS/commit/354218514d32beac963ff5c306f1cf159ee37c5f
- https://github.com/eProsima/Fast-DDS/commit/ced3b6f92d928af1eae77d5fe889878128ad421a
- https://github.com/eProsima/Fast-DDS/commit/a726e6a5daba660418d1f7c05b6f203c17747d2b