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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (22.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/eProsima/Fast-DDS/blob/master/src/cpp/fastdds/core/Time_t.cpp (Product)
- gist.github.com/lkloliver/b00377bec754d4aa1dc731be210d5889 (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.