{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2023-50257",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-50257",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2024-02-19T19:22:45.526Z",
    "updatedAt": "2024-08-14T13:54:54.506Z",
    "importedAt": "2026-10-24T01:56:58.683Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Disconnect Vulnerability in RTPS Packets Used by SROS2",
      "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.",
      "affected": [
        {
          "vendor": "eProsima",
          "product": "Fast-DDS",
          "versions": [
            {
              "version": ">= 2.12.0, < 2.12.2",
              "status": "affected"
            },
            {
              "version": ">= 2.11.0, < 2.11.3",
              "status": "affected"
            },
            {
              "version": ">= 2.7.0, < 2.10.3",
              "status": "affected"
            },
            {
              "version": "< 2.6.7",
              "status": "affected"
            },
            {
              "version": "FastDDS = 2.10.2-2",
              "status": "affected"
            },
            {
              "version": "RMW - FastDDS = 7.1.1-2",
              "status": "affected"
            },
            {
              "version": "FastDDS = 2.6.6-1",
              "status": "affected"
            },
            {
              "version": "RMW - FastDDS = 6.2.3.1",
              "status": "affected"
            },
            {
              "version": "FastDDS = 2.3.6-6",
              "status": "affected"
            },
            {
              "version": "RMW - FastDDS = 5.0.2-1",
              "status": "affected"
            },
            {
              "version": "FastDDS = 2.1.4-1",
              "status": "affected"
            },
            {
              "version": "RMW - FastDDS = 1.3.2-1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}