{"answers":{"affected":"It affects 24 products.","exploited":"There is no known exploitation of CVE-2021-3511 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-3511 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-3511 is a medium-severity vulnerability in Buffalo broadband routers, published on 28 Apr 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-2021-3511 and fix it if it is affected.\n\nWhat it is: CVE-2021-3511 is a medium-severity vulnerability in Buffalo broadband routers, published on 28 Apr 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-2021-3511 in the wild and no public exploit code.\n\nAffected product: Buffalo broadband routers. 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-2021-3511/ (Markdown: https://insights.sbomify.com/CVE-2021-3511/index.md)","id":"CVE-2021-3511","markdown":"https://insights.sbomify.com/CVE-2021-3511/index.md","name":"CVE-2021-3511","record":{"aliases":["GHSA-668x-35ff-63g9"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Buffalo broadband routers","requires_auth":"none","summary":"Remote unauthenticated attackers can obtain sensitive configuration information from Buffalo broadband routers via unspecified vectors.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"bhr-4grv_firmware","vendor":"buffalo"},{"product":"dwr-hp-g300nh_firmware","vendor":"buffalo"},{"product":"fs-600dhp_firmware","vendor":"buffalo"},{"product":"fs-g300n_firmware","vendor":"buffalo"},{"product":"fs-hp-g300n_firmware","vendor":"buffalo"},{"product":"fs-r600dhp_firmware","vendor":"buffalo"},{"product":"hw-450hp-zwe_firmware","vendor":"buffalo"},{"product":"whr-300_firmware","vendor":"buffalo"},{"product":"whr-300hp_firmware","vendor":"buffalo"},{"product":"whr-g301n_firmware","vendor":"buffalo"},{"product":"whr-hp-g300n_firmware","vendor":"buffalo"},{"product":"whr-hp-gn_firmware","vendor":"buffalo"},{"product":"wpl-05g300_firmware","vendor":"buffalo"},{"product":"wzr-300hp_firmware","vendor":"buffalo"},{"product":"wzr-450hp-cwt_firmware","vendor":"buffalo"},{"product":"wzr-450hp-ub_firmware","vendor":"buffalo"},{"product":"wzr-450hp_firmware","vendor":"buffalo"},{"product":"wzr-600dhp_firmware","vendor":"buffalo"},{"product":"wzr-d1100h_firmware","vendor":"buffalo"},{"product":"wzr-hp-ag300h_firmware","vendor":"buffalo"},{"product":"wzr-hp-g300nh_firmware","vendor":"buffalo"},{"product":"wzr-hp-g301nh_firmware","vendor":"buffalo"},{"product":"wzr-hp-g302h_firmware","vendor":"buffalo"},{"product":"wzr-hp-g450h_firmware","vendor":"buffalo"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"Disclosure of sensitive information to an unauthorized user vulnerability in Buffalo broadband routers (BHR-4GRV firmware Ver.1.99 and prior, DWR-HP-G300NH firmware Ver.1.83 and prior, HW-450HP-ZWE firmware Ver.1.99 and prior, WHR-300HP firmware Ver.1.99 and prior, WHR-300 firmware Ver.1.99 and prior, WHR-G301N firmware Ver.1.86 and prior, WHR-HP-G300N firmware Ver.1.99 and prior, WHR-HP-GN firmware Ver.1.86 and prior, WPL-05G300 firmware Ver.1.87 and prior, WZR-450HP-CWT firmware Ver.1.99 and prior, WZR-450HP-UB firmware Ver.1.99 and prior, WZR-HP-AG300H firmware Ver.1.75 and prior, WZR-HP-G300NH firmware Ver.1.83 and prior, WZR-HP-G301NH firmware Ver.1.83 and prior, WZR-HP-G302H firmware Ver.1.85 and prior, WZR-HP-G450H firmware Ver.1.89 and prior, WZR-300HP firmware Ver.1.99 and prior, WZR-450HP firmware Ver.1.99 and prior, WZR-600DHP firmware Ver.1.99 and prior, WZR-D1100H firmware Ver.1.99 and prior, FS-HP-G300N firmware Ver.3.32 and prior, FS-600DHP firmware Ver.3.38 and prior, FS-R600DHP firmware Ver.3.39 and prior, and FS-G300N firmware Ver.3.13 and prior) allows remote unauthenticated attackers to obtain information such as configuration via unspecified vectors.","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":"Information disclosure in Buffalo broadband routers","id":"CVE-2021-3511","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Auth bypass in Buffalo broadband routers","id":"CVE-2021-3512"},"packages":[],"prev":{"headline":"Zephyr JSON decoder incorrectly decodes array of array","id":"CVE-2021-3510"},"products":["Buffalo broadband routers"],"published":"2021-04-28","related":[{"cvss_score":8.8,"headline":"Auth bypass in Buffalo network devices","id":"CVE-2022-40966","kev_date_added":null,"published":"2022-12-07"},{"cvss_score":8.8,"headline":"Auth bypass in Buffalo broadband routers","id":"CVE-2021-3512","kev_date_added":null,"published":"2021-04-28"},{"cvss_score":6.8,"headline":"Command injection in Buffalo network devices","id":"CVE-2022-39044","kev_date_added":null,"published":"2022-12-07"},{"cvss_score":6.5,"headline":"Information disclosure in n/a","id":"CVE-2016-4816","kev_date_added":null,"published":"2016-06-19"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["BUFFALO INC."]},"summary":"Remote unauthenticated attackers can obtain sensitive configuration information from Buffalo broadband routers via unspecified vectors.","url":"https://insights.sbomify.com/CVE-2021-3511/"}