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TI-2021-16028 Aliases CVE-2021-38425GHSA-6x94-8g2r-qg72

eProsima Fast DDS Network Amplification

Priority MEDIUM 53CWE-406Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.05022 92nd percentileScored 2026-11-07
Fix Fixed Fast DDS (eProsima): 2.4.0 (#2269)

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
eProsimaFast DDSbefore 2.4.0 (#2269)2.4.0 (#2269)Patch availableCNA
  • Fast DDS VendoreProsima Affected before 2.4.0 (#2269) Fixed in 2.4.0 (#2269) Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*before 2.4.0VulnerableeProsima
  • cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:* Versions before 2.4.0 Vulnerable ·eProsima

Remediation

  • Fix · CNA Fast DDS (eProsima) Fixed in 2.4.0 (#2269)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38425
  2. 2026-10-03 Alias added: GHSA-6x94-8g2r-qg72

References

Advisory 2

  • TI-2025-38815 Integer overflow in eProsima Fast-DDS CVSS 3.1HIGH 8.6
  • TI-2024-18790 Manipulated DATA Submessage causes a heap-buffer-overflow error CVSS 3.1CRITICAL 9.7
  • TI-2023-27485 Disconnect Vulnerability in RTPS Packets Used by SROS2 CVSS 3.1CRITICAL 9.7
  • TI-2024-20005 FastDDS heap buffer overflow when publisher sends malformed packet CVSS 3.1HIGH 8.2
  • TI-2023-20840 Another heap overflow in push_back_helper CVSS 3.1HIGH 8.2
  • TI-2023-20839 Heap overflow in push_back_helper due to a CDR message CVSS 3.1HIGH 8.2
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences