---
id: CVE-2025-65865
title: >-
  An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a
  Denial of Service (DoS) via a crafted input.
summary: >-
  An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a
  Denial of Service (DoS) via a crafted input.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-190
vendor: eprosima
product: fast_dds
affected:
  - fast_dds = 3.3.0
published: '2025-12-23'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-65865'
references:
  - url: 'https://gist.github.com/lkloliver/7aa48cb9fc7a1dd74cb595212bb69d33'
    label: cve@mitre.org
  - url: 'https://github.com/lkloliver/poc/blob/main/Detail.md'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00404
epssPercentile: 0.31819
ingestedAt: '2026-07-06T16:44:34.498Z'
---

## Overview

An integer overflow in eProsima Fast-DDS v3.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.

## Affected

- `fast_dds = 3.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.