{"id":"CVE-2026-76653","aliases":["EUVD-2026-75726","GHSA-4rwx-9hrf-jj43"],"status":"published","title":"Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600","description":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.","severity":{"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:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00474,"percentile":0.41441,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-126"],"published":"2026-09-10T20:12:43Z","modified":"2026-09-11T15:21:12Z","products":[{"vendor":"tp-link systems inc.","product":"archer mr600"},{"vendor":"tp-link systems inc.","product":"tl-mr6400 v8"}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5292/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76653"},{"url":"https://www.tp-link.com/us/support/faq/5292"},{"url":"https://github.com/advisories/GHSA-4rwx-9hrf-jj43"}],"sources":{"cve":[{"id":"CVE-2026-76653","title":"Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600","description":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.","status":"published","published":"2026-09-10T20:12:43.207Z","modified":"2026-09-10T20:27:18.091Z","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:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T13:46:10.323375Z"}],"euvd":[{"id":"EUVD-2026-75726","description":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.","status":"published","published":"2026-09-10T20:12:43Z","modified":"2026-09-10T20:27:18Z","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:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:23.364345Z"}],"ghsa":[{"id":"GHSA-4rwx-9hrf-jj43","title":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in...","description":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.","status":"published","published":"2026-09-10T21:31:38Z","modified":"2026-09-10T21:31:39Z","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:N/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"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T15:11:43.240477Z"}],"nvd":[{"id":"CVE-2026-76653","description":"A missing\nauthentication vulnerability in the VPN configuration management has been\nidentified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8 due to improper access control; a remote unauthenticated attacker\nmay be able to access and modify VPN configuration information without valid\ncredentials.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow a remote unauthenticated attacker to disclose and modify\nVPN configuration information.","status":"published","published":"2026-09-10T21:17:45.433Z","modified":"2026-09-11T15:21:12.85Z","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:N/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","assessor":"secondary"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:12:46.271848Z"}]}}