Vulnerability · Published Nov 18, 2025 · Assigned by mitre
CVE-2025-63829
Medium 5.3
In plain English
A medium-severity infinite loop in the fastdds package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 72.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | fastdds | no fix listed | DEBIAN-CVE-2025-63829 |
| Debian:13 | fastdds | no fix listed | DEBIAN-CVE-2025-63829 |
| Ubuntu:24.04:LTS | fastdds | no fix listed | UBUNTU-CVE-2025-63829 |
| Ubuntu:25.10 | fastdds | no fix listed | UBUNTU-CVE-2025-63829 |
| Ubuntu:26.04:LTS | fastdds | no fix listed | UBUNTU-CVE-2025-63829 |
| Ubuntu:26.10 | fastdds | no fix listed | UBUNTU-CVE-2025-63829 |
Affected products (as reported)
Weakness: CWE-835 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N