{"cve":{"cve_id":"CVE-2026-11409","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":0.02787,"epss_percentile":0.8454,"epss_as_of":"2026-06-23","description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","published_at":"2026-06-16T21:03:47.128000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":8.5,"cvss_v4_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cvss_v4_severity":"HIGH","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-78"],"nvd_references":["https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware","https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware","https://www.tp-link.com/us/support/faq/5131/"],"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":"2026-06-28T23:28:54.533120Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"A","value_label":"Adjacent"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"H","value_label":"High"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"tp-link-systems-inc.","vendor_name":"TP-Link Systems Inc.","product_slug":"tl-wr940n-v6","product_name":"TL-WR940N v6","version_start":"0","version_start_inclusive":true,"version_end":"V6_260528","version_end_inclusive":false,"cpe23_uri":"cve5:tp-link-systems-inc.:tl-wr940n-v6:0:V6_260528"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/us/support/faq/5131/","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-16T21:03:47.128000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:50:35.910213Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:35.910213Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:35.910213Z","label":"CVSS score revised","source":"cvelistv5"}]}