{"cve":"CVE-2021-20035","nvd":{"published":"2021-09-27T18:15:08.383","modified":"2026-06-17T03:33:11.067","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-78"],"references":["https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022","https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20035"],"products":["sonicwall:sma_200_firmware","sonicwall:sma_210_firmware","sonicwall:sma_400_firmware","sonicwall:sma_410_firmware","sonicwall:sma_500v"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-20035","score":0.04406,"percentile":0.91331,"date":"2026-11-01"},"kev":{"cve":"CVE-2021-20035","date_added":"2025-04-16","due_date":"2025-05-07","vendor":"SonicWall","product":"SMA100 Appliances","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}