{"id":"CVE-2021-26747","aliases":["EUVD-2021-13534","GHSA-w38f-4qh6-g599"],"status":"published","title":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the...","description":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.","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":0.54777,"percentile":0.99035,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2021-02-18T20:55:01Z","modified":"2026-06-17T03:43:45Z","products":[{"vendor":"netis-systems","product":"wf2411_firmware"},{"vendor":"netis-systems","product":"wf2780_firmware"}],"references":[{"url":"https://github.com/yhstar00/netis-route","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"http://www.netis-systems.com.tw/","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26747"},{"url":"https://github.com/advisories/GHSA-w38f-4qh6-g599"}],"sources":{"cve":[{"id":"CVE-2021-26747","description":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.","status":"published","published":"2021-02-18T20:55:01Z","modified":"2024-08-03T20:33:41.173Z","updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-13534","description":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.","status":"published","published":"2021-02-18T20:55:01Z","modified":"2024-08-03T20:33:41Z","updated_at":"2026-11-03T03:24:50.84326Z"}],"ghsa":[{"id":"GHSA-w38f-4qh6-g599","title":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the...","description":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.","status":"published","published":"2022-05-24T17:42:38Z","modified":"2023-01-29T05:06:38Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:46:04.414181Z"}],"nvd":[{"id":"CVE-2021-26747","description":"Netis WF2780 2.3.40404 and WF2411 1.1.29629 devices allow Shell Metacharacter Injection into the ping command, leading to remote code execution.","status":"published","published":"2021-02-18T21:15:11.51Z","modified":"2026-06-17T03:43:45.897Z","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":"2026-11-02T14:06:50.031227Z"}]}}