{"cve":"CVE-2022-22278","nvd":{"published":"2022-04-27T17:15:07.453","modified":"2026-06-17T04:28:09.700","status":"Modified","description":"A vulnerability in SonicOS CFS (Content filtering service) returns a large 403 forbidden HTTP response message to the source address when users try to access prohibited resource this allows an attacker to cause HTTP Denial of Service (DoS) attack","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0004","https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0004"],"products":["sonicwall:nsa_2650_firmware","sonicwall:nsa_2700_firmware","sonicwall:nsa_3650_firmware","sonicwall:nsa_3700_firmware","sonicwall:nsa_4650_firmware","sonicwall:nsa_4700_firmware","sonicwall:nsa_5650_firmware","sonicwall:nsa_5700_firmware","sonicwall:nsa_6650_firmware","sonicwall:nsa_6700_firmware","sonicwall:nsa_9250_firmware","sonicwall:nsa_9450_firmware","sonicwall:nsa_9650_firmware","sonicwall:nssp_10700_firmware","sonicwall:nssp_11700_firmware","sonicwall:nssp_12400_firmware","sonicwall:nssp_12800_firmware","sonicwall:nssp_13700_firmware","sonicwall:nssp_15700_firmware","sonicwall:nsv_100_firmware","sonicwall:nsv_10_firmware","sonicwall:nsv_1600_firmware","sonicwall:nsv_200_firmware","sonicwall:nsv_25_firmware","sonicwall:nsv_270_firmware","sonicwall:nsv_300_firmware","sonicwall:nsv_400_firmware","sonicwall:nsv_470_firmware","sonicwall:nsv_50_firmware","sonicwall:nsv_800_firmware","sonicwall:nsv_870_firmware","sonicwall:tz300p_firmware","sonicwall:tz300w_firmware","sonicwall:tz350_firmware","sonicwall:tz350w_firmware","sonicwall:tz370_firmware","sonicwall:tz370w_firmware","sonicwall:tz400_firmware","sonicwall:tz400w_firmware","sonicwall:tz470_firmware","sonicwall:tz470w_firmware","sonicwall:tz500_firmware","sonicwall:tz500w_firmware","sonicwall:tz570_firmware","sonicwall:tz570p_firmware","sonicwall:tz570w_firmware","sonicwall:tz600_firmware","sonicwall:tz600p_firmware","sonicwall:tz670_firmware"],"source":"nvd","synced_at":"2026-10-19T21:30:03.577988018+00:00"},"epss":{"cve":"CVE-2022-22278","score":0.00956,"percentile":0.61432,"date":"2026-10-31"},"kev":null,"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."]}