What is CVE-2025-63829?

CVE-2025-63829 is a high-severity vulnerability in Eprosima Fast_dds, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2025-11-18.

How severe is CVE-2025-63829?

High severity. CVSS v3 base score is 7.5 out of 10.

Integer overflow in Eprosima Fast_dds

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.

Vulnerability class: Integer Overflow

EPSS: 0.003 (19.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Eprosima Fast_dds
N/a — versions n/a

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound
CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2025-63829?: CVE-2025-63829 is a high-severity vulnerability in Eprosima Fast_dds, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2025-11-18.
How severe is CVE-2025-63829?: High severity. CVSS v3 base score is 7.5 out of 10.