eProsima Fast-DDS up to 3.3 Time_t::fraction integer overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.4 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in eProsima Fast-DDS up to 3.3. This affects the function Time_t::fraction. The manipulation leads to integer overflow.
This vulnerability is listed as CVE-2025-63829. There is no available exploit.
Details
A vulnerability was found in eProsima Fast-DDS up to 3.3. It has been rated as problematic. This issue affects the function Time_t::fraction. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is availability. The summary by CVE is:
eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function.
The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-63829 since 10/27/2025. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/31/2025).
The vulnerability scanner Nessus provides a plugin with the ID 275741 (Linux Distros Unpatched Vulnerability : CVE-2025-63829), which helps to determine the existence of the flaw in a target environment.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at Tenable (275741). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Vendor
Name
Version
Website
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.4
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔒
CVSSv2
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Integer overflowCWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Nessus ID: 275741
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-63829
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
10/27/2025 CVE reserved11/18/2025 Advisory disclosed
11/18/2025 VulDB entry created
12/31/2025 VulDB entry last update
Sources
Product: github.comAdvisory: github.com
Status: Not defined
CVE: CVE-2025-63829 (🔒)
GCVE (CVE): GCVE-0-2025-63829
GCVE (VulDB): GCVE-100-332873
Entry
Created: 11/18/2025 20:29Updated: 12/31/2025 04:55
Changes: 11/18/2025 20:29 (52), 11/19/2025 12:17 (2), 12/31/2025 04:55 (11)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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