{"id":"CVE-2021-20035","aliases":["EUVD-2021-7498","GHSA-g24w-7v2m-52xh"],"status":"published","title":"Improper neutralization of special elements in the SMA100 management interface allows a remote...","description":"Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.04406,"percentile":0.91409,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2021-09-27T17:20:12Z","modified":"2026-06-17T03:33:11Z","kev":{"date_added":"2025-04-16","due_date":"2025-05-07","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2025-04-16"},{"source":"kev","since":"2025-04-16"}],"products":[{"vendor":"sonicwall","product":"sma100"},{"vendor":"sonicwall","product":"sma100 appliances"},{"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-2021-0022","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20035","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20035"},{"url":"https://github.com/advisories/GHSA-g24w-7v2m-52xh"}],"sources":{"cve":[{"id":"CVE-2021-20035","description":"Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.","status":"published","published":"2021-09-27T17:20:12Z","modified":"2025-10-21T23:25:31.035Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-7498","description":"Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to 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DoS.","status":"published","published":"2021-09-27T18:15:08.383Z","modified":"2026-06-17T03:33:11.067Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}