{"id":"CVE-2020-14078","aliases":["EUVD-2020-6237","GHSA-phh5-3hr5-wpcq"],"status":"published","title":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi...","description":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01783,"percentile":0.78459,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2020-06-15T03:36:43Z","modified":"2026-06-17T02:54:12Z","products":[{"vendor":"trendnet","product":"tew-827dru_firmware"}],"references":[{"url":"https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/wifi_captive_portal_login_overflow.pdf","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-wifi_captive.pdf","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14078"},{"url":"https://github.com/advisories/GHSA-phh5-3hr5-wpcq"}],"sources":{"cve":[{"id":"CVE-2020-14078","description":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.","status":"published","published":"2020-06-15T03:36:43Z","modified":"2024-08-04T12:39:35.606Z","updated_at":"2026-11-02T14:35:46.873079Z"}],"euvd":[{"id":"EUVD-2020-6237","description":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.","status":"published","published":"2020-06-15T03:36:43Z","modified":"2024-08-04T12:39:35Z","updated_at":"2026-11-03T03:07:35.099081Z"}],"ghsa":[{"id":"GHSA-phh5-3hr5-wpcq","title":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi...","description":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.","status":"published","published":"2022-05-24T17:20:31Z","modified":"2023-01-29T05:03:02Z","updated_at":"2026-11-02T14:45:13.764942Z"}],"nvd":[{"id":"CVE-2020-14078","description":"TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action wifi_captive_portal_login with a sufficiently long REMOTE_ADDR key.","status":"published","published":"2020-06-15T04:15:13.533Z","modified":"2026-06-17T02:54:12.333Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:07.249892Z"}]}}