{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-50257 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2023-50257 is a critical denial of service vulnerability in eProsima Fast-DDS, published on 19 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-50257 and fix it if it is affected.\n\nWhat it is: CVE-2023-50257 is a critical denial of service vulnerability in eProsima Fast-DDS, published on 19 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-50257 exists.\n\nAffected product: eProsima Fast-DDS. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-50257/ (Markdown: https://insights.sbomify.com/CVE-2023-50257/index.md)","id":"CVE-2023-50257","markdown":"https://insights.sbomify.com/CVE-2023-50257/index.md","name":"CVE-2023-50257","record":{"aliases":["DEBIAN-CVE-2023-50257","GHSA-v5r6-8mvh-cp98","UBUNTU-CVE-2023-50257"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Fast DDS library","requires_auth":"none","summary":"Attackers can forcibly disconnect subscribers and prevent new connections in SROS2-enabled Fast DDS applications by sending unencrypted RTPS packets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"fast_dds","vendor":"eprosima"}],"cvss":{"score":9.7,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2025-04-20","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-04-20T11:32:14Z","kind":"github_poc","ref":"https://github.com/Jminis/CVE-2023-50257","stars":0,"title":"This repository is for research purposes (2025 Sejong Univ. Capstone Design)"}],"tier":"weaponised"},"has_fix":true,"headline":"Disconnect Vulnerability in RTPS Packets Used by SROS2","id":"CVE-2023-50257","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"Blind SSRF in `/home/testdiscord` endpoint","id":"CVE-2023-50258"},"packages":[],"prev":{"headline":"Froxlor username/surname AND company field Bypass","id":"CVE-2023-50256"},"products":["Fast-DDS"],"published":"2024-02-19","related":[{"cvss_score":10,"headline":"Security feature bypass in n/a","id":"CVE-2025-67108","kev_date_added":null,"published":"2025-12-23"},{"cvss_score":9.7,"headline":"Manipulated DATA Submessage causes a heap-buffer-overflow error","id":"CVE-2024-28231","kev_date_added":null,"published":"2024-03-20"},{"cvss_score":9.7,"headline":"Invalid DATA_FRAG Submessage causes a bad-free error","id":"CVE-2023-50716","kev_date_added":null,"published":"2024-03-06"},{"cvss_score":8.6,"headline":"Malformed DATA submessage leads to bad-free error in Fast-DDS","id":"CVE-2023-42459","kev_date_added":null,"published":"2023-10-16"},{"cvss_score":8.2,"headline":"FastDDS crash when publisher send malformed packet","id":"CVE-2024-30258","kev_date_added":null,"published":"2024-05-13"},{"cvss_score":8.2,"headline":"FastDDS heap buffer overflow when publisher sends malformed packet","id":"CVE-2024-30259","kev_date_added":null,"published":"2024-05-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-08-14","vendors":["eProsima"]},"summary":"Attackers can forcibly disconnect subscribers and prevent new connections in SROS2-enabled Fast DDS applications by sending unencrypted RTPS packets.","url":"https://insights.sbomify.com/CVE-2023-50257/"}