{"id":"CVE-2021-34236","aliases":["EUVD-2021-20898","GHSA-vfq9-7wg3-4mjx"],"status":"published","title":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to...","description":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01507,"percentile":0.74566,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-09-07T23:58:32Z","modified":"2026-06-17T03:55:34Z","products":[{"vendor":"netgear","product":"r8000_firmware"}],"references":[{"url":"https://github.com/Davidteeri/Bug-Report/blob/main/netgear-8000.md","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34236"},{"url":"https://github.com/advisories/GHSA-vfq9-7wg3-4mjx","tags":["Third Party Advisory"]}],"sources":{"cve":[{"id":"CVE-2021-34236","description":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.","status":"published","published":"2022-09-07T23:58:32Z","modified":"2024-08-04T00:05:52.487Z","updated_at":"2026-11-02T14:33:11.59359Z"}],"euvd":[{"id":"EUVD-2021-20898","description":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.","status":"published","published":"2022-09-07T23:58:32Z","modified":"2024-08-04T00:05:52Z","updated_at":"2026-11-03T03:24:32.880562Z"}],"ghsa":[{"id":"GHSA-vfq9-7wg3-4mjx","title":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to...","description":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.","status":"published","published":"2022-09-09T00:01:12Z","modified":"2023-01-30T05:06:47Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:47:34.433705Z"}],"nvd":[{"id":"CVE-2021-34236","description":"Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.","status":"published","published":"2022-09-08T00:15:09.827Z","modified":"2026-06-17T03:55:34.257Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}