{"id":"CVE-2021-20034","aliases":["EUVD-2021-7497","GHSA-vfqg-fwg4-f3vx"],"status":"published","title":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to...","description":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.81831,"percentile":0.9965,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-22","CWE-269","CWE-284"],"published":"2021-09-27T17:20:10Z","modified":"2026-06-17T03:33:10Z","exploits":[{"source":"exploitdb","id":"EDB-50430","title":"SonicWall SMA 10.2.1.0-17sv - Password Reset","type":"webapps","platform":"hardware","date":"2021-10-20","url":"https://www.exploit-db.com/exploits/50430"}],"products":[{"vendor":"sonicwall","product":"sma100"},{"vendor":"sonicwall","product":"sma_200_firmware"},{"vendor":"sonicwall","product":"sma_210_firmware"},{"vendor":"sonicwall","product":"sma_400_firmware"},{"vendor":"sonicwall","product":"sma_410_firmware"},{"vendor":"sonicwall","product":"sma_500v"}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0021","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20034"},{"url":"https://github.com/advisories/GHSA-vfqg-fwg4-f3vx"}],"sources":{"cve":[{"id":"CVE-2021-20034","description":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.","status":"published","published":"2021-09-27T17:20:10Z","modified":"2024-08-03T17:30:07.243Z","cwes":["CWE-284"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-7497","description":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.","status":"published","published":"2021-09-27T17:20:10Z","modified":"2024-08-03T17:30:07Z","updated_at":"2026-11-03T03:25:10.418596Z"}],"ghsa":[{"id":"GHSA-vfqg-fwg4-f3vx","title":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to...","description":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.","status":"published","published":"2022-05-24T19:15:44Z","modified":"2023-01-27T05:03:34Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical"}],"cwes":["CWE-22","CWE-269"],"updated_at":"2026-11-02T14:42:16.196802Z"}],"nvd":[{"id":"CVE-2021-20034","description":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.","status":"published","published":"2021-09-27T18:15:08.327Z","modified":"2026-06-17T03:33:10.953Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-284","CWE-22"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}