{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-20738 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20738 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20738 is a medium-severity vulnerability in ELECOM CO.,LTD. WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA, published on 7 Jul 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-2021-20738 and fix it if it is affected.\n\nWhat it is: CVE-2021-20738 is a medium-severity vulnerability in ELECOM CO.,LTD. WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA, published on 7 Jul 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-2021-20738 in the wild and no public exploit code.\n\nAffected product: ELECOM CO.,LTD. WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA. 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-2021-20738/ (Markdown: https://insights.sbomify.com/CVE-2021-20738/index.md)","id":"CVE-2021-20738","markdown":"https://insights.sbomify.com/CVE-2021-20738/index.md","name":"CVE-2021-20738","record":{"aliases":["GHSA-9m73-cfj6-8gjc"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Wireless router","requires_auth":"none","summary":"Unauthenticated network-adjacent attackers can obtain sensitive information from ELECOM wireless routers via unspecified vectors.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"wrc-1167fs-b_firmware","vendor":"elecom"},{"product":"wrc-1167fs-w_firmware","vendor":"elecom"},{"product":"wrc-1167fsa_firmware","vendor":"elecom"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[],"description":"WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information 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 WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA","id":"CVE-2021-20738","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":"Command injection in WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH-H300BK, WRH-300BK-S, and WRH-300WH-S","id":"CVE-2021-20739"},"packages":[],"prev":{"headline":"Auth bypass in GROWI","id":"CVE-2021-20737"},"products":["WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA"],"published":"2021-07-07","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["ELECOM CO.,LTD."]},"summary":"Unauthenticated network-adjacent attackers can obtain sensitive information from ELECOM wireless routers via unspecified vectors.","url":"https://insights.sbomify.com/CVE-2021-20738/"}