CVE-2025-64098 FastDDS has Out-of-memory in readOctetVector via Manipulated DATA Submessage when DDS Security is enabled
An attacker can cause a denial of service in Fast DDS by triggering an integer overflow in the security module, leading to out-of-memory termination.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-64098?
CVE-2025-64098 is a low-severity vulnerability in Debian Debian Linux, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Which versions are affected by CVE-2025-64098?
It affects 2 products.
Products include Debian Debian Linux, Eprosima Fast Dds.
How do I fix CVE-2025-64098?
No fix has been published for CVE-2025-64098 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-64098 being exploited?
There is no known exploitation of CVE-2025-64098 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2025-64098, UBUNTU-CVE-2025-64098.