What is the CVSS score of CVE-2025-63829?

CVE-2025-63829 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Fast Dds are affected by CVE-2025-63829?

Organizations using eProsima Fast-DDS v3.3 and before face notable risk from CVE-2025-63829, a integer overflow vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2025-63829?

Yes, a public proof-of-concept exploit is available for CVE-2025-63829. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-63829?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Fast Dds CVE-2025-63829

HIGH

Integer Overflow or Wraparound (CWE-190)

2025-11-18 cve@mitre.org

Denial Of Service Integer Overflow Fast Dds

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:22 vuln.today

PoC Detected

Dec 31, 2025 - 02:09 vuln.today

Public exploit code

CVE Published

Nov 18, 2025 - 17:16 nvd

HIGH 7.5

DescriptionCVE.org

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

AnalysisAI

eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Integer Overflow (CWE-190), which allows attackers to cause unexpected behavior through arithmetic overflow. eProsima Fast-DDS v3.3 and before has an infinite loop vulnerability caused by integer overflow in the Time_t:: fraction() function. Affected products include: Eprosima Fast Dds.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate arithmetic operations, use safe integer libraries, check bounds before allocation.