CVE-2021-38425

Fast Dds vulnerability

CVSS

7.5

EPSS

5.0%

EPSS pct

91th

Exploited

No known

eProsima Fast DDS versions prior to 2.4.0 (#2269) are susceptible to exploitation when an attacker sends a specially crafted packet to flood a target device with unwanted traffic, which may result in a denial-of-service condition and information exposure.

Affected vendor

Eprosima

Affected product

Fast Dds

CVSS vector

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

Weakness type (CWE)

CWE-406 — Insufficient Control of Network Message Volume

Published

2022-05-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2021-38425

Confirm whether Eprosima Fast Dds is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-38425.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-38425

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