{"id":"CVE-2021-26810","aliases":["EUVD-2021-13597","GHSA-26qh-mgjw-5hg7"],"status":"published","title":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request...","description":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.","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":"2026-11-11","score":0.04905,"percentile":0.9221,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78","CWE-94"],"published":"2021-03-30T13:27:57Z","modified":"2026-06-17T03:43:48Z","products":[{"vendor":"dlink","product":"dir-816_firmware"}],"references":[{"url":"https://www.dlink.com/en/security-bulletin/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://github.com/GD008/vuln/blob/main/DIR-816.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26810"},{"url":"https://github.com/advisories/GHSA-26qh-mgjw-5hg7"}],"sources":{"cve":[{"id":"CVE-2021-26810","description":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.","status":"published","published":"2021-03-30T13:27:57Z","modified":"2024-08-03T20:33:40.791Z","updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13597","description":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.","status":"published","published":"2021-03-30T13:27:57Z","modified":"2024-08-03T20:33:40Z","updated_at":"2026-11-03T03:24:50.84326Z"}],"ghsa":[{"id":"GHSA-26qh-mgjw-5hg7","title":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request...","description":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.","status":"published","published":"2022-05-24T17:45:51Z","modified":"2023-01-27T05:02:53Z","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-94"],"updated_at":"2026-11-02T14:42:07.495183Z"}],"nvd":[{"id":"CVE-2021-26810","description":"D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.","status":"published","published":"2021-03-30T14:15:13.607Z","modified":"2026-06-17T03:43:48.77Z","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":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}