{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-25666 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-25666 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-25666 is a medium-severity denial of service vulnerability in Siemens SCALANCE W780 and W740 (IEEE 802.11n) family, published on 9 Feb 2021. 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-2021-25666 and fix it if it is affected.\n\nWhat it is: CVE-2021-25666 is a medium-severity denial of service vulnerability in Siemens SCALANCE W780 and W740 (IEEE 802.11n) family, published on 9 Feb 2021. 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-2021-25666 in the wild and no public exploit code.\n\nAffected product: Siemens SCALANCE W780 and W740 (IEEE 802.11n) family. 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-2021-25666/ (Markdown: https://insights.sbomify.com/CVE-2021-25666/index.md)","id":"CVE-2021-25666","markdown":"https://insights.sbomify.com/CVE-2021-25666/index.md","name":"CVE-2021-25666","record":{"aliases":["GHSA-462j-78vj-jjpr"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Siemens SCALANCE wireless","requires_auth":"none","summary":"An attacker can cause a partial denial-of-service on Siemens SCALANCE wireless devices by sending specially crafted ARP packets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"scalance_w740_firmware","vendor":"siemens"},{"product":"scalance_w780_firmware","vendor":"siemens"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"A vulnerability has been identified in SCALANCE W780 and W740 (IEEE 802.11n) family (All versions \u003c V6.3). Sending specially crafted packets through the ARP protocol to an affected device could cause a partial denial-of-service, preventing the device to operate normally for a short period of time.","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":"Denial of service in SCALANCE W780 and W740 (IEEE 802.11n) family","id":"CVE-2021-25666","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":"Memory corruption in RUGGEDCOM RM1224","id":"CVE-2021-25667"},"packages":[],"prev":{"headline":"Memory corruption in Simcenter STAR-CCM+ Viewer","id":"CVE-2021-25665"},"products":["SCALANCE W780 and W740 (IEEE 802.11n) family"],"published":"2021-02-09","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Siemens"]},"summary":"An attacker can cause a partial denial-of-service on Siemens SCALANCE wireless devices by sending specially crafted ARP packets.","url":"https://insights.sbomify.com/CVE-2021-25666/"}