{"id":"CVE-2018-21171","aliases":["EUVD-2018-13689","GHSA-chgg-c582-67cw"],"status":"published","title":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user....","description":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.","severity":{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00655,"percentile":0.517,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-04-27T17:36:49Z","modified":"2026-06-17T01:54:17Z","products":[{"vendor":"netgear","product":"d6100_firmware"},{"vendor":"netgear","product":"r7800_firmware"},{"vendor":"netgear","product":"r9000_firmware"},{"vendor":"netgear","product":"wndr3700_firmware"},{"vendor":"netgear","product":"wndr4300_firmware"}],"references":[{"url":"https://kb.netgear.com/000055187/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2632","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-21171"},{"url":"https://github.com/advisories/GHSA-chgg-c582-67cw"}],"sources":{"cve":[{"id":"CVE-2018-21171","description":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.","status":"published","published":"2020-04-27T17:36:49Z","modified":"2024-08-05T12:26:38.026Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:02.289647Z"}],"euvd":[{"id":"EUVD-2018-13689","description":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.","status":"published","published":"2020-04-27T17:36:49Z","modified":"2024-08-05T12:26:38Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N","level":"medium"}],"updated_at":"2026-11-03T02:39:27.875919Z"}],"ghsa":[{"id":"GHSA-chgg-c582-67cw","title":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user....","description":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.","status":"published","published":"2022-05-24T17:16:31Z","modified":"2023-01-29T05:02:27Z","updated_at":"2026-11-02T14:45:05.725997Z"}],"nvd":[{"id":"CVE-2018-21171","description":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.","status":"published","published":"2020-04-27T18:15:12.92Z","modified":"2026-06-17T01:54:17.56Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":5.2,"vector":"AV:A/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:05:00.03074Z"}]}}