{"id":"CVE-2018-17787","aliases":["EUVD-2018-9533","GHSA-jq8r-c5mq-7jcx"],"status":"published","title":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell...","description":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the \"system\" library function.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03661,"percentile":0.89707,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2018-10-02T18:00:00Z","modified":"2026-06-17T01:46:20Z","products":[{"vendor":"d-link","product":"dir-823g_firmware"}],"references":[{"url":"https://xz.aliyun.com/t/2834","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-17787"},{"url":"https://github.com/advisories/GHSA-jq8r-c5mq-7jcx"}],"sources":{"cve":[{"id":"CVE-2018-17787","description":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the \"system\" library function.","status":"published","published":"2018-10-02T18:00:00Z","modified":"2024-08-05T10:54:10.618Z","updated_at":"2026-11-02T14:35:07.672841Z"}],"euvd":[{"id":"EUVD-2018-9533","description":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the \"system\" library function.","status":"published","published":"2018-10-02T18:00:00Z","modified":"2024-08-05T10:54:10Z","updated_at":"2026-11-03T02:39:37.709725Z"}],"ghsa":[{"id":"GHSA-jq8r-c5mq-7jcx","title":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell...","description":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the \"system\" library function.","status":"published","published":"2022-05-13T01:50:34Z","modified":"2023-02-02T05:01:57Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:51:18.541099Z"}],"nvd":[{"id":"CVE-2018-17787","description":"On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the \"system\" library function.","status":"published","published":"2018-10-02T18:29:02.57Z","modified":"2026-06-17T01:46:20.243Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:04:42.52179Z"}]}}