{"cve":{"cve_id":"CVE-2022-30526","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":0.01107,"epss_percentile":0.61581,"epss_as_of":"2026-06-23","description":"A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.","published_at":"2022-07-19T05:45:14Z","last_modified_at":null,"cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/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":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-269"],"nvd_references":["https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml","http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html"],"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":"2026-06-28T23:17:34.743417Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"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 5.30","version_start_inclusive":true,"version_end":"4.32 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:atp-series-firmware:4.32 through 5.30:4.32 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-20-w-vpn-firmware","product_name":"USG 20(W)-VPN firmware","version_start":"4.16 through 5.30","version_start_inclusive":true,"version_end":"4.16 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-20-w-vpn-firmware:4.16 through 5.30:4.16 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-flex-100-w-firmware","product_name":"USG FLEX 100(W) firmware","version_start":"4.50 through 5.30","version_start_inclusive":true,"version_end":"4.50 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-flex-100-w-firmware:4.50 through 5.30:4.50 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-flex-200-firmware","product_name":"USG FLEX 200 firmware","version_start":"4.50 through 5.30","version_start_inclusive":true,"version_end":"4.50 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-flex-200-firmware:4.50 through 5.30:4.50 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-flex-500-firmware","product_name":"USG FLEX 500 firmware","version_start":"4.50 through 5.30","version_start_inclusive":true,"version_end":"4.50 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-flex-500-firmware:4.50 through 5.30:4.50 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-flex-50-w-firmware","product_name":"USG FLEX 50(W) firmware","version_start":"4.16 through 5.30","version_start_inclusive":true,"version_end":"4.16 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-flex-50-w-firmware:4.16 through 5.30:4.16 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-flex-700-firmware","product_name":"USG FLEX 700 firmware","version_start":"4.50 through 5.30","version_start_inclusive":true,"version_end":"4.50 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-flex-700-firmware:4.50 through 5.30:4.50 through 5.30"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"usg-zywall-series-firmware","product_name":"USG/ZyWALL series firmware","version_start":"4.09 through 4.72","version_start_inclusive":true,"version_end":"4.09 through 4.72","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:usg-zywall-series-firmware:4.09 through 4.72:4.09 through 4.72"},{"vendor_slug":"zyxel","vendor_name":"Zyxel","product_slug":"vpn-series-firmware","product_name":"VPN series firmware","version_start":"4.30 through 5.30","version_start_inclusive":true,"version_end":"4.30 through 5.30","version_end_inclusive":true,"cpe23_uri":"cve5:zyxel:vpn-series-firmware:4.30 through 5.30:4.30 through 5.30"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml","source_type":"MISC","tags":[]},{"url":"http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.html","source_type":"EXPLOIT","tags":["exploit"]}],"timeline":[{"type":"published","at":"2022-07-19T05:45:14Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:22:27.915531Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:22:27.915531Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:22:27.915531Z","label":"CVSS score revised","source":"cvelistv5"}]}