{"cve":{"cve_id":"CVE-2026-0834","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":0.00401,"epss_percentile":0.31784,"epss_as_of":"2026-06-23","description":"Logic vulnerability in TP-Link Archer C20 v5, 6.0, Archer AX53 v1.0 and TL-WR841N v13 (TDDP module) allows unauthenticated adjacent attackers to execute administrative commands including factory reset and device reboot without credentials. Attackers on the adjacent network can remotely trigger factory resets and reboots without credentials, causing configuration loss and interruption of device availability.\n\nThis issue affects Archer C20 v6.0 < V6_251031, Archer C20 v5 <EU_V5_260317 or < US_V5_260419\n\n\nArcher AX53 v1.0 < \n\nV1_251215\n\n\n\nTL-WR841N v13 < 0.9.1 Build 20231120 Rel.62366","published_at":"2026-01-21T17:14:55.179000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":7.2,"cvss_v4_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/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-290"],"nvd_references":["https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware","https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware","https://mattg.systems/posts/cve-2026-0834/","https://www.tp-link.com/us/support/faq/4905/","https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware","https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware","https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware"],"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":"2026-06-28T23:28:48.137961Z"},"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":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"L","value_label":"Low"},{"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":"archer-c20-v5","product_name":"Archer C20 v5","version_start":"0","version_start_inclusive":true,"version_end":"US_V5_260419","version_end_inclusive":false,"cpe23_uri":"cve5:tp-link-systems-inc.:archer-c20-v5:0:US_V5_260419"},{"vendor_slug":"tp-link-systems-inc.","vendor_name":"TP-Link Systems Inc.","product_slug":"archer-c20-v5","product_name":"Archer C20 v5","version_start":"0","version_start_inclusive":true,"version_end":"EU_V5_260317","version_end_inclusive":false,"cpe23_uri":"cve5:tp-link-systems-inc.:archer-c20-v5:0:EU_V5_260317"},{"vendor_slug":"tp-link-systems-inc.","vendor_name":"TP-Link Systems Inc.","product_slug":"archer-c20-v6.0-archer-ax53-v1.0","product_name":"Archer C20 v6.0, Archer AX53 v1.0","version_start":"0","version_start_inclusive":true,"version_end":"V6_251031","version_end_inclusive":false,"cpe23_uri":"cve5:tp-link-systems-inc.:archer-c20-v6.0-archer-ax53-v1.0:0:V6_251031"},{"vendor_slug":"tp-link-systems-inc.","vendor_name":"TP-Link Systems Inc.","product_slug":"archer-c20-v6.0-archer-ax53-v1.0","product_name":"Archer C20 v6.0, Archer AX53 v1.0","version_start":"0","version_start_inclusive":true,"version_end":"V1_251215","version_end_inclusive":false,"cpe23_uri":"cve5:tp-link-systems-inc.:archer-c20-v6.0-archer-ax53-v1.0:0:V1_251215"},{"vendor_slug":"tp-link-systems-inc.","vendor_name":"TP-Link Systems Inc.","product_slug":"tl-wr841n-v13","product_name":"TL-WR841N v13","version_start":"0","version_start_inclusive":true,"version_end":"0.9.1 Build 20231120 Rel.62366","version_end_inclusive":false,"cpe23_uri":"cve5:tp-link-systems-inc.:tl-wr841n-v13:0:0.9.1 Build 20231120 Rel.62366"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware","source_type":"MISC","tags":[]},{"url":"https://mattg.systems/posts/cve-2026-0834/","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/us/support/faq/4905/","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware","source_type":"MISC","tags":[]},{"url":"https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-01-21T17:14:55.179000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:50:21.811688Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:21.811688Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:21.811688Z","label":"CVSS score revised","source":"cvelistv5"}]}