{"id":"CVE-2021-20739","aliases":["EUVD-2021-8153","GHSA-6g7g-h77w-72mh"],"status":"published","title":"WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH...","description":"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 all versions allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command via unspecified vectors.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00512,"percentile":0.44015,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2021-07-07T07:05:26Z","modified":"2026-06-17T03:34:20Z","products":[{"vendor":"elecom","product":"wrc-300febk_firmware"},{"vendor":"elecom","product":"wrc-733febk_firmware"},{"vendor":"elecom","product":"wrc-f300nf_firmware"},{"vendor":"elecom","product":"wrh-300bk-s_firmware"},{"vendor":"elecom","product":"wrh-300bk_firmware"},{"vendor":"elecom","product":"wrh-300rd_firmware"},{"vendor":"elecom","product":"wrh-300sv_firmware"},{"vendor":"elecom","product":"wrh-300wh-s_firmware"},{"vendor":"elecom","product":"wrh-300wh_firmware"},{"vendor":"elecom","product":"wrh-h300bk_firmware"},{"vendor":"elecom","product":"wrh-h300wh_firmware"},{"vendor":"elecom co.,ltd.","product":"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"}],"references":[{"url":"https://www.elecom.co.jp/news/security/20210706-01/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://jvn.jp/en/vu/JVNVU94260088/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20739"},{"url":"https://github.com/advisories/GHSA-6g7g-h77w-72mh"}],"sources":{"cve":[{"id":"CVE-2021-20739","description":"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 all versions allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command via unspecified vectors.","status":"published","published":"2021-07-07T07:05:26Z","modified":"2024-08-03T17:53:21.835Z","updated_at":"2026-11-02T14:32:55.905855Z"}],"euvd":[{"id":"EUVD-2021-8153","description":"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 all versions allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command via unspecified vectors.","status":"published","published":"2021-07-07T07:05:26Z","modified":"2024-08-03T17:53:21Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-6g7g-h77w-72mh","title":"WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH...","description":"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 all versions allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command via unspecified vectors.","status":"published","published":"2022-05-24T19:07:09Z","modified":"2023-01-30T05:00:38Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:46:14.926249Z"}],"nvd":[{"id":"CVE-2021-20739","description":"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 all versions allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command via unspecified vectors.","status":"published","published":"2021-07-07T08:15:07.813Z","modified":"2026-06-17T03:34:20.973Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:A/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:06:55.259633Z"}]}}