{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-3166 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-3166 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-3166 is a high-severity vulnerability in n/a, published on 18 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3166 and fix it if it is affected.\n\nWhat it is: CVE-2021-3166 is a high-severity vulnerability in n/a, published on 18 Jan 2021. 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-2021-3166 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-3166/ (Markdown: https://insights.sbomify.com/CVE-2021-3166/index.md)","id":"CVE-2021-3166","markdown":"https://insights.sbomify.com/CVE-2021-3166/index.md","name":"CVE-2021-3166","record":{"aliases":["GHSA-mm32-fp7q-h532"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"ASUS DSL Router","requires_auth":"none","summary":"Attackers can upload arbitrary files as firmware updates on ASUS DSL-N14U-B1 routers, triggering service shutdowns and causing persistent denial of service.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"dsl-n14u_b1_firmware","vendor":"asus"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"An issue was discovered on ASUS DSL-N14U-B1 1.1.2.3_805 devices. An attacker can upload arbitrary file content as a firmware update when the filename Settings_DSL-N14U-B1.trx is used. Once this file is loaded, shutdown measures on a wide range of services are triggered as if it were a real update, resulting in a persistent outage of those services.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2022-11-18","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2022-11-18T18:28:57Z","kind":"github_poc","ref":"https://github.com/kaisersource/CVE-2021-3166","stars":0,"title":"Mastering CVE-2021-3166"}],"tier":"poc_unverified"},"has_fix":null,"headline":"File upload in n/a","id":"CVE-2021-3166","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-3167"},"packages":[],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2021-3165"},"products":["n/a"],"published":"2021-01-18","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can upload arbitrary files as firmware updates on ASUS DSL-N14U-B1 routers, triggering service shutdowns and causing persistent denial of service.","url":"https://insights.sbomify.com/CVE-2021-3166/"}