{"id":"CVE-2021-20031","aliases":["EUVD-2021-7494","GHSA-467c-cx8x-xprw"],"status":"published","title":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to...","description":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.12984,"percentile":0.96383,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-601"],"published":"2021-10-12T22:55:09Z","modified":"2026-11-09T15:31:34Z","exploits":[{"source":"exploitdb","id":"EDB-50414","title":"Sonicwall SonicOS 7.0 - Host Header Injection","type":"webapps","platform":"hardware","date":"2021-10-13","url":"https://www.exploit-db.com/exploits/50414"},{"source":"nuclei","id":"CVE-2021-20031","title":"SonicWall SonicOS 7.0 - Open Redirect","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-20031.yaml"}],"products":[{"vendor":"sonicwall","product":"sonicos"}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0019","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/164502/Sonicwall-SonicOS-7.0-Host-Header-Injection.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20031"},{"url":"https://github.com/advisories/GHSA-467c-cx8x-xprw"}],"sources":{"cve":[{"id":"CVE-2021-20031","description":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.","status":"published","published":"2021-10-12T22:55:09Z","modified":"2024-08-03T17:30:07.419Z","cwes":["CWE-601"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-7494","description":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.","status":"published","published":"2021-10-12T22:55:09Z","modified":"2024-08-03T17:30:07Z","updated_at":"2026-11-03T03:25:10.418596Z"}],"ghsa":[{"id":"GHSA-467c-cx8x-xprw","title":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to...","description":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.","status":"published","published":"2022-05-24T19:17:34Z","modified":"2026-11-09T15:31:34Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-09T15:48:41.634645Z"}],"nvd":[{"id":"CVE-2021-20031","description":"A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.","status":"published","published":"2021-10-12T23:15:07.727Z","modified":"2026-11-09T14:43:41.437Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-09T16:14:49.14815Z"}]}}