{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43547 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43547 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43547 is a high-severity denial of service vulnerability in TwinOaks Computing CoreDX DDS, published on 5 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-43547 and fix it if it is affected.\n\nWhat it is: CVE-2021-43547 is a high-severity denial of service vulnerability in TwinOaks Computing CoreDX DDS, published on 5 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-43547 in the wild and no public exploit code.\n\nAffected product: TwinOaks Computing CoreDX 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-2021-43547/ (Markdown: https://insights.sbomify.com/CVE-2021-43547/index.md)","id":"CVE-2021-43547","markdown":"https://insights.sbomify.com/CVE-2021-43547/index.md","name":"CVE-2021-43547","record":{"aliases":["GHSA-c6m8-cmm6-5qvg"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"CoreDX DDS middleware","requires_auth":"none","summary":"Attackers can cause denial of service and information exposure in TwinOaks CoreDX DDS by sending crafted packets, affecting industrial control systems.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"coredx_dds","vendor":"twinoakscomputing"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-406","name":"Insufficient Control of Network Message Volume (Network Amplification)"}],"description":"TwinOaks Computing CoreDX DDS versions prior to 5.9.1 are susceptible to exploitation when an attacker sends a specially crafted packet to flood target devices with unwanted traffic. This may result in a denial-of-service condition and information exposure.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"TwinOaks Computing CoreDX DDS Secure Network Amplification","id":"CVE-2021-43547","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Philips Patient Information Center iX (PIC iX) and Efficia CM Series Improper Input Validation","id":"CVE-2021-43548"},"packages":[],"prev":{"headline":"Other in Firefox","id":"CVE-2021-43546"},"products":["CoreDX DDS"],"published":"2022-05-05","related":[],"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)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-16","vendors":["TwinOaks Computing"]},"summary":"Attackers can cause denial of service and information exposure in TwinOaks CoreDX DDS by sending crafted packets, affecting industrial control systems.","url":"https://insights.sbomify.com/CVE-2021-43547/"}