{"cve":{"cve_id":"CVE-2022-38547","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.02806,"epss_percentile":0.84643,"epss_as_of":"2026-06-23","description":"A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator privileges to execute OS commands.","published_at":"2023-02-07T00:00:00Z","last_modified_at":null,"cvss_v3_score":7.2,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-78"],"nvd_references":["https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-rce-in-firewalls"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-29T01:12:48.830977Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"atp-series-firmware","product_name":"ATP series firmware","version_start":"4.32 through 5.32","version_start_inclusive":true,"version_end":"4.32 through 5.32","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:atp-series-firmware:4.32 through 5.32:4.32 through 5.32"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-flex-series-firmware","product_name":"USG FLEX series firmware","version_start":"4.50 through 5.32","version_start_inclusive":true,"version_end":"4.50 through 5.32","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-flex-series-firmware:4.50 through 5.32:4.50 through 5.32"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"vpn-series-firmware","product_name":"VPN series firmware","version_start":"4.30 through 5.32","version_start_inclusive":true,"version_end":"4.30 through 5.32","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:vpn-series-firmware:4.30 through 5.32:4.30 through 5.32"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"zywall-usg-series-firmware","product_name":"ZyWALL/USG series firmware","version_start":"4.20 through 4.72","version_start_inclusive":true,"version_end":"4.20 through 4.72","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:zywall-usg-series-firmware:4.20 through 4.72:4.20 through 4.72"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-rce-in-firewalls","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2023-02-07T00:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:23:24.468138Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:23:24.468138Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:23:24.468138Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:12:48.830977Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:12:48.830977Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:12:48.830977Z","label":"SSVC decision revised","source":"vulnrichment"}]}