{"id":"CVE-2026-0834","aliases":["EUVD-2026-3601","GHSA-cpr3-8r3m-jjf4"],"status":"published","title":"Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13","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 \u003c V6_251031, Archer C20 v5 \u003cEU_V5_260317 or \u003c US_V5_260419\n\n\nArcher AX53 v1.0 \u003c \n\nV1_251215\n\n\n\nTL-WR841N v13 \u003c 0.9.1 Build 20231120 Rel.62366","severity":{"version":"4.0","score":7.2,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00429,"percentile":0.37345,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-290"],"published":"2026-01-21T17:14:55Z","modified":"2026-06-17T10:11:27Z","exploits":[{"source":"pocgithub","id":"mattgsys/CVE-2026-0834","title":"mattgsys/CVE-2026-0834","date":"2026-01-12","url":"https://github.com/mattgsys/CVE-2026-0834"}],"products":[{"vendor":"tp link systems inc.","product":"tl-wr841n v13"},{"vendor":"tp-link","product":"archer_ax53_firmware"},{"vendor":"tp-link","product":"archer_c20_firmware"},{"vendor":"tp-link systems inc.","product":"archer c20 v5"},{"vendor":"tp-link systems inc.","product":"archer c20 v6.0, archer ax53 v1.0"}],"references":[{"url":"https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware","tags":["patch","Product"]},{"url":"https://mattg.systems/posts/cve-2026-0834/","tags":["Permissions Required"]},{"url":"https://www.tp-link.com/us/support/faq/4905/","tags":["vendor-advisory"]},{"url":"https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/download/tl-wr841n/v13/#Firmware","tags":["patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0834"},{"url":"https://killing.systems/posts/cve-2026-0834"},{"url":"https://mattg.systems/posts/cve-2026-0834"},{"url":"https://www.tp-link.com/us/support/faq/4905"},{"url":"https://github.com/advisories/GHSA-cpr3-8r3m-jjf4"}],"sources":{"cve":[{"id":"CVE-2026-0834","title":"Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13","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 \u003c V6_251031, Archer C20 v5 \u003cEU_V5_260317 or \u003c US_V5_260419\n\n\nArcher AX53 v1.0 \u003c \n\nV1_251215\n\n\n\nTL-WR841N v13 \u003c 0.9.1 Build 20231120 Rel.62366","status":"published","published":"2026-01-21T17:14:55.179Z","modified":"2026-04-28T17:46:59.608Z","cvss":[{"version":"4.0","score":7.2,"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","level":"high","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:20:13.587351Z"}],"euvd":[{"id":"EUVD-2026-3601","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 \u003c V6_251031, Archer C20 v5 \u003cEU_V5_260317 or \u003c US_V5_260419\n\n\nArcher AX53 v1.0 \u003c \n\nV1_251215\n\n\n\nTL-WR841N v13 \u003c 0.9.1 Build 20231120 Rel.62366","status":"published","published":"2026-01-21T17:14:55Z","modified":"2026-04-28T17:46:59Z","cvss":[{"version":"4.0","score":7.2,"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","level":"high"}],"updated_at":"2026-11-02T19:05:26.474819Z"}],"ghsa":[{"id":"GHSA-cpr3-8r3m-jjf4","title":"Logic vulnerability in TP-Link Archer C20 v6.0 and Archer AX53 v1.0 (TDDP module) allows...","description":"Logic vulnerability in TP-Link Archer C20 v6.0 and Archer AX53 v1.0 (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.This issue affects Archer C20 v6.0 \u003c V6_251031.\n\n\nArcher AX53 v1.0 \u003c \n\nV1_251215","status":"published","published":"2026-01-21T18:30:32Z","modified":"2026-04-23T18:33:32Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:07:37.11234Z"}],"nvd":[{"id":"CVE-2026-0834","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 \u003c V6_251031, Archer C20 v5 \u003cEU_V5_260317 or \u003c US_V5_260419\n\n\nArcher AX53 v1.0 \u003c \n\nV1_251215\n\n\n\nTL-WR841N v13 \u003c 0.9.1 Build 20231120 Rel.62366","status":"published","published":"2026-01-21T18:16:24.773Z","modified":"2026-06-17T10:11:27.867Z","cvss":[{"version":"4.0","score":7.2,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:12:04.423757Z"}]}}