CVE-2025-63829

Name: CVE-2025-63829
Creator: NVD / NIST
Published: 2025-11-18T17:16:12.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.28%

Last modified Jun 17, 2026

CVE-2025-63829 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.28%

19.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Eprosima	Fast Dds	<= 3.3.0

References

https://gist.github.com/lkloliver/b00377bec754d4aa1dc731be210d5889Exploit, Mitigation, Third Party Advisory
https://github.com/eProsima/Fast-DDS/blob/master/src/cpp/fastdds/core/Time_t.cpp#L67Product

Timeline

Published: Nov 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2025-63829?

CVE-2025-63829 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63829?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63829?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST