{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2020-37216 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-37216 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-37216 is a high-severity denial of service vulnerability in Belden Hirschmann HiOS, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-37216 and fix it if it is affected.\n\nWhat it is: CVE-2020-37216 is a high-severity denial of service vulnerability in Belden Hirschmann HiOS, published on 3 Apr 2026. 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-2020-37216 in the wild and no public exploit code.\n\nAffected product: Belden Hirschmann HiOS. 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-2020-37216/ (Markdown: https://insights.sbomify.com/CVE-2020-37216/index.md)","id":"CVE-2020-37216","markdown":"https://insights.sbomify.com/CVE-2020-37216/index.md","name":"CVE-2020-37216","record":{"aliases":["GHSA-m685-jgfp-vmx9"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Industrial network switch","requires_auth":"none","summary":"Remote attackers can crash Hirschmann HiOS devices by sending crafted EtherNet/IP packets with invalid length fields, causing denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01  contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a length value larger than the actual packet size to render the device inoperable.","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":"Hirschmann HiOS EtherNet/IP Stack Denial of Service","id":"CVE-2020-37216","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Easy2Pilot 7 Cross-Site Request Forgery via admin.php","id":"CVE-2020-37217"},"packages":[],"prev":{"headline":"MSN Password Recovery 1.30 - Denial of Service","id":"CVE-2020-37215"},"products":["Hirschmann HiOS"],"published":"2026-04-03","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-07-15","vendors":["Belden"]},"summary":"Remote attackers can crash Hirschmann HiOS devices by sending crafted EtherNet/IP packets with invalid length fields, causing denial of service.","url":"https://insights.sbomify.com/CVE-2020-37216/"}