{"cve":{"cve_id":"CVE-2021-28812","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":0.01553,"epss_percentile":0.71915,"epss_as_of":"2026-06-23","description":"A command injection vulnerability has been reported to affect certain versions of Video Station. If exploited, this vulnerability allows remote attackers to execute arbitrary commands. This issue affects: QNAP Systems Inc. Video Station versions prior to 5.5.4 on QTS 4.5.2; versions prior to 5.5.4 on QuTS hero h4.5.2; versions prior to 5.5.4 on QuTScloud c4.5.4. This issue does not affect: QNAP Systems Inc. Video Station on QTS 4.3.6; on QTS 4.3.3.","published_at":"2021-06-03T02:45:14.642000Z","last_modified_at":null,"cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/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-1286","CWE-77","CWE-78"],"nvd_references":["https://www.qnap.com/zh-tw/security-advisory/qsa-21-21"],"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":"2026-06-28T23:15:26.101164Z"},"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":"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":"qnap-systems-inc.","vendor_name":"QNAP Systems Inc.","product_slug":"video-station","product_name":"Video Station","version_start":"unspecified","version_start_inclusive":true,"version_end":"5.5.4","version_end_inclusive":false,"cpe23_uri":"cve5:qnap-systems-inc.:video-station:unspecified:5.5.4"},{"vendor_slug":"qnap-systems-inc.","vendor_name":"QNAP Systems Inc.","product_slug":"video-station","product_name":"Video Station","version_start":"5.3.x","version_start_inclusive":true,"version_end":"5.3.x","version_end_inclusive":true,"cpe23_uri":"cve5:qnap-systems-inc.:video-station:5.3.x:5.3.x"},{"vendor_slug":"qnap-systems-inc.","vendor_name":"QNAP Systems Inc.","product_slug":"video-station","product_name":"Video Station","version_start":"5.1.x","version_start_inclusive":true,"version_end":"5.1.x","version_end_inclusive":true,"cpe23_uri":"cve5:qnap-systems-inc.:video-station:5.1.x:5.1.x"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.qnap.com/zh-tw/security-advisory/qsa-21-21","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2021-06-03T02:45:14.642000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:18:04.076611Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:18:04.076611Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:18:04.076611Z","label":"CVSS score revised","source":"cvelistv5"}]}