{"cve_id":"CVE-2021-20035","published":"2021-09-27T18:15:08.383000+00:00","last_modified":"2026-06-17T03:33:11.067000+00:00","vuln_status":"Analyzed","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.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","base_score":6.5,"base_severity":"MEDIUM","attack_vector":"NETWORK","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"NONE","impact_i":"NONE","impact_a":"HIGH","cwe_ids":["CWE-78"],"in_kev":true,"kev_date_added":"2025-04-16","kev_ransomware":false,"epss_score":0.04406,"epss_percentile":0.91331,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"USER","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC","DOS"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:49:31.857362+00:00","first_seen":"2021-09-27T18:15:08.383000+00:00","kev_first_seen":"2025-04-16T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["sonicwall"],"products":["sma_200","sma_200_firmware","sma_210","sma_210_firmware","sma_400","sma_400_firmware","sma_410","sma_410_firmware","sma_500v"],"affected":[{"vendor":"sonicwall","product":"sma_200_firmware","ranges":["≥ 10.2.1.0 and < 10.2.1.1-19sv","< 9.0.0.11-31sv","≥ 10.2.0.0 and < 10.2.0.8-37sv"]},{"vendor":"sonicwall","product":"sma_210_firmware","ranges":["< 9.0.0.11-31sv","≥ 10.2.0.0 and < 10.2.0.8-37sv","≥ 10.2.1.0 and < 10.2.1.1-19sv"]},{"vendor":"sonicwall","product":"sma_400_firmware","ranges":["≥ 10.2.0.0 and < 10.2.0.8-37sv","< 9.0.0.11-31sv","≥ 10.2.1.0 and < 10.2.1.1-19sv"]},{"vendor":"sonicwall","product":"sma_410_firmware","ranges":["≥ 10.2.0.0 and < 10.2.0.8-37sv","≥ 10.2.1.0 and < 10.2.1.1-19sv","< 9.0.0.11-31sv"]},{"vendor":"sonicwall","product":"sma_500v","ranges":["< 9.0.0.11-31sv","≥ 10.2.0.0 and < 10.2.0.8-37sv","≥ 10.2.1.0 and < 10.2.1.1-19sv"]}]}