{"id":"CVE-2020-24987","aliases":["EUVD-2020-17687","GHSA-q9jc-x24x-r9x9"],"status":"published","title":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a...","description":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to \"radius\".","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":0.03104,"percentile":0.87864,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2020-09-04T19:24:39Z","modified":"2026-06-17T03:06:12Z","products":[{"vendor":"tendacn","product":"ac18_firmware"}],"references":[{"url":"https://www.tendacn.com/en/product/AC18.html","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://drive.google.com/file/d/1iqpr0EofOBC6kCq2USTOBPRlJu_naFjQ/view?usp=sharing","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://cwe.mitre.org/data/definitions/287.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-24987"},{"url":"https://github.com/advisories/GHSA-q9jc-x24x-r9x9"}],"sources":{"cve":[{"id":"CVE-2020-24987","description":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to \"radius\".","status":"published","published":"2020-09-04T19:24:39Z","modified":"2024-08-04T15:26:09.361Z","updated_at":"2026-11-02T14:35:54.468882Z"}],"euvd":[{"id":"EUVD-2020-17687","description":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to \"radius\".","status":"published","published":"2020-09-04T19:24:39Z","modified":"2024-08-04T15:26:09Z","updated_at":"2026-11-03T03:07:18.658916Z"}],"ghsa":[{"id":"GHSA-q9jc-x24x-r9x9","title":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a...","description":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to \"radius\".","status":"published","published":"2022-05-24T17:27:25Z","modified":"2023-01-27T05:02:57Z","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-287"],"updated_at":"2026-11-02T14:42:08.04985Z"}],"nvd":[{"id":"CVE-2020-24987","description":"Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to \"radius\".","status":"published","published":"2020-09-04T20:15:13.48Z","modified":"2026-06-17T03:06:12.747Z","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"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:14.981587Z"}]}}