CVE-2025-63829: eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function.

CVE-2025-63829 · Severity: high · CVSS 7.5 · Published 2025-11-18

eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function.

Technologies: Eprosima Fast Dds. Vendors: Eprosima.

Quick answers

Is CVE-2025-63829 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-63829 being exploited in the wild.
How severe is CVE-2025-63829?
High severity, with a CVSS score of 7.5, published 18 November 2025.
Which products and versions are affected?
Eprosima Fast Dds. The advisory does not name versions.
Is there a fix for CVE-2025-63829?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-63829?
Check whether you run Eprosima Fast Dds. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Eprosima Fast Dds

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.