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TI-2023-27485 Aliases CVE-2023-50257

Disconnect Vulnerability in RTPS Packets Used by SROS2

Priority HIGH 76CWE-284Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

eProsima Fast DDS (formerly Fast RTPS) is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Even with the application of SROS2, due to the issue where the data (`p[UD]`) and `guid` values used to disconnect between nodes are not encrypted, a vulnerability has been discovered where a malicious attacker can forcibly disconnect a Subscriber and can deny a Subscriber attempting to connect. Afterwards, if the attacker sends the packet for disconnecting, which is data (`p[UD]`), to the Global Data Space (`239.255.0.1:7400`) using the said Publisher ID, all the Subscribers (Listeners) connected to the Publisher (Talker) will not receive any data and their connection will be disconnected. Moreover, if this disconnection packet is sent continuously, the Subscribers (Listeners) trying to connect will not be able to do so. Since the initial commit of the `SecurityManager.cpp` code (`init`, `on_process_handshake`) on Nov 8, 2016, the Disconnect Vulnerability in RTPS Packets Used by SROS2 has been present prior to versions 2.13.0, 2.12.2, 2.11.3, 2.10.3, and 2.6.7.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00478 41st percentileScored 2026-11-07
Fix Fixed Fast-DDS (eProsima): 2.12.2, 2.11.3, 2.10.3 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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-DDS2.12.0 to before 2.12.2; 2.11.0 to before 2.11.3; 2.7.0 to before 2.10.3; before 2.6.7; FastDDS = 2.10.2-2; RMW - FastDDS = 7.1.1-2; FastDDS = 2.6.6-1; RMW - FastDDS = 6.2.3.1; FastDDS = 2.3.6-6; RMW - FastDDS = 5.0.2-1; FastDDS = 2.1.4-1; RMW - FastDDS = 1.3.2-12.12.2, 2.11.3, 2.10.3, 2.6.7Patch availableCNA
  • Fast-DDS VendoreProsima Affected 2.12.0 to before 2.12.2; 2.11.0 to before 2.11.3; 2.7.0 to before 2.10.3; before 2.6.7; FastDDS = 2.10.2-2; RMW - FastDDS = 7.1.1-2; FastDDS = 2.6.6-1; RMW - FastDDS = 6.2.3.1; FastDDS = 2.3.6-6; RMW - FastDDS = 5.0.2-1; FastDDS = 2.1.4-1; RMW - FastDDS = 1.3.2-1 Fixed in 2.12.2, 2.11.3, 2.10.3, 2.6.7 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:*before 2.6.7; 2.10.0 to before 2.10.3; 2.11.0 to before 2.11.3; 2.12.0 to before 2.12.2VulnerableeProsima
  • cpe:2.3:a:eprosima:fast_dds:*:*:*:*:*:*:*:* Versions before 2.6.7; 2.10.0 to before 2.10.3; 2.11.0 to before 2.11.3; 2.12.0 to before 2.12.2 Vulnerable ·eProsima

Remediation

  • Fix · CNA Fast-DDS (eProsima) Fixed in 2.12.2, 2.11.3, 2.10.3, 2.6.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-50257

References

Patch 5

  • 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-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
  • TI-2023-20838 Malformed serialized data in a data submessage leads to unhandled exception 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