{"id":"CVE-2022-21742","aliases":["EUVD-2022-26906","GHSA-5rv3-34jj-v83f"],"status":"published","title":"Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family - Buffer Overflow","description":"Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.","severity":{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00245,"percentile":0.15767,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-06-20T05:30:28Z","modified":"2026-06-17T04:26:54Z","products":[{"vendor":"realtek","product":"rtl8152b_firmware"},{"vendor":"realtek","product":"rtl8153_firmware"},{"vendor":"realtek","product":"rtl8153b_firmware"},{"vendor":"realtek","product":"rtl8154_firmware"},{"vendor":"realtek","product":"rtl8154b_firmware"},{"vendor":"realtek","product":"rtl8156_firmware"},{"vendor":"realtek","product":"rtl8156b_firmware"},{"vendor":"realtek","product":"usb fe/1gbe/2.5gbe/5gbe nic family"}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-6057-1cd0d-1.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21742"},{"url":"https://github.com/advisories/GHSA-5rv3-34jj-v83f"}],"sources":{"cve":[{"id":"CVE-2022-21742","title":"Realtek USB FE/1GbE/2.5GbE/5GbE NIC Family - Buffer Overflow","description":"Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.","status":"published","published":"2022-06-20T05:30:28.159Z","modified":"2024-09-17T01:36:28.945Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:34:29.057251Z"}],"euvd":[{"id":"EUVD-2022-26906","description":"Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.","status":"published","published":"2022-06-20T05:30:28Z","modified":"2024-09-17T01:36:28Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:28:47.904483Z"}],"ghsa":[{"id":"GHSA-5rv3-34jj-v83f","title":"Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length...","description":"Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.","status":"published","published":"2022-06-21T00:00:48Z","modified":"2023-01-27T05:04:33Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:42:29.387682Z"}],"nvd":[{"id":"CVE-2022-21742","description":"Realtek USB driver has a buffer overflow vulnerability due to insufficient parameter length verification in the API function. An unauthenticated LAN attacker can exploit this vulnerability to disrupt services.","status":"published","published":"2022-06-20T06:15:08.63Z","modified":"2026-06-17T04:26:54.113Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:22.613788Z"}]}}