{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2017-20233 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2017-20233 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-20233 is a medium-severity vulnerability in Belden Hirschmann HiLCOS BAT867, published on 3 Apr 2026. 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-2017-20233 and fix it if it is affected.\n\nWhat it is: CVE-2017-20233 is a medium-severity vulnerability in Belden Hirschmann HiLCOS BAT867, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2017-20233 in the wild and no public exploit code.\n\nAffected product: Belden Hirschmann HiLCOS BAT867. 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-2017-20233/ (Markdown: https://insights.sbomify.com/CVE-2017-20233/index.md)","id":"CVE-2017-20233","markdown":"https://insights.sbomify.com/CVE-2017-20233/index.md","name":"CVE-2017-20233","record":{"aliases":["GHSA-w392-grj8-mrrf"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass","data_read"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Hirschmann Layer-2 Firewall","requires_auth":"none","summary":"Attackers can bypass firewall filters to inject or observe multicast traffic when management IP filtering is disabled on Hirschmann HiLCOS devices.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Hirschmann HiLCOS products OpenBAT, BAT450, WLC, BAT867 contains a firewall filtering vulnerability that fails to correctly filter IPv4 multicast and broadcast traffic when management IP address filtering is disabled, allowing configured filter rules to be bypassed. Attackers with network access can inject or observe multicast and broadcast packets that should have been blocked by the firewall.","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 HiLCOS Layer-2 Firewall Multicast Broadcast Traffic Bypass","id":"CVE-2017-20233","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2017"},"n_packages":0,"n_references":2,"next":{"headline":"GarrettCom Magnum 6K and 10K Authentication Bypass via Hardcoded String","id":"CVE-2017-20234"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2017-20232"},"products":["Hirschmann HiLCOS BAT867","Hirschmann HiLCOS OpenBAT, BAT450, WLC"],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-25","vendors":["Belden"]},"summary":"Attackers can bypass firewall filters to inject or observe multicast traffic when management IP filtering is disabled on Hirschmann HiLCOS devices.","url":"https://insights.sbomify.com/CVE-2017-20233/"}