{"id":"CVE-2026-76652","aliases":["EUVD-2026-75727","GHSA-q3j6-99qm-jjmm"],"status":"published","title":"Authenticated Directory Traversal Vulnerability in File Upload Functionality in TP-Link TL-MR6400 and Archer MR600","description":"An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen identified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file\ninformation, an authenticated remote attacker with access to the affected\nupload functionality could upload a specially crafted file and cause it to be\nwritten outside the intended directory. \n\n\n\n\n\nSuccessful\nexploitation could allow an authenticated remote attacker to write files to\nunintended locations, potentially overwriting or modifying files\naccessible to the affected service; arbitrary code execution has not\nbeen demonstrated.","severity":{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00732,"percentile":0.54781,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-09-10T20:12:50Z","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-2026-76652"},{"url":"https://www.tp-link.com/us/support/faq/5292"},{"url":"https://github.com/advisories/GHSA-q3j6-99qm-jjmm"}],"sources":{"cve":[{"id":"CVE-2026-76652","title":"Authenticated Directory Traversal Vulnerability in File Upload Functionality in TP-Link TL-MR6400 and Archer MR600","description":"An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen identified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file\ninformation, an authenticated remote attacker with access to the affected\nupload functionality could upload a specially crafted file and cause it to be\nwritten outside the intended directory. \n\n\n\n\n\nSuccessful\nexploitation could allow an authenticated remote attacker to write files to\nunintended locations, potentially overwriting or modifying files\naccessible to the affected service; arbitrary code execution has not\nbeen demonstrated.","status":"published","published":"2026-09-10T20:12:50.706Z","modified":"2026-09-10T20:27:00.302Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:46:21.568011Z"}],"euvd":[{"id":"EUVD-2026-75727","description":"An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen identified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file\ninformation, an authenticated remote attacker with access to the affected\nupload functionality could upload a specially crafted file and cause it to be\nwritten outside the intended directory. \n\n\n\n\n\nSuccessful\nexploitation could allow an authenticated remote attacker to write files to\nunintended locations, potentially overwriting or modifying files\naccessible to the affected service; arbitrary code execution has not\nbeen demonstrated.","status":"published","published":"2026-09-10T20:12:50Z","modified":"2026-09-10T20:27:00Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:23.364345Z"}],"ghsa":[{"id":"GHSA-q3j6-99qm-jjmm","title":"An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen...","description":"An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen identified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file\ninformation, an authenticated remote attacker with access to the affected\nupload functionality could upload a specially crafted file and cause it to be\nwritten outside the intended directory. \n\n\n\n\n\nSuccessful\nexploitation could allow an authenticated remote attacker to write files to\nunintended locations, potentially overwriting or modifying files\naccessible to the affected service; arbitrary code execution has not\nbeen demonstrated.","status":"published","published":"2026-09-10T21:31:38Z","modified":"2026-09-10T21:31:38Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/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-22"],"updated_at":"2026-11-02T15:11:43.240477Z"}],"nvd":[{"id":"CVE-2026-76652","description":"An\nauthenticated directory traversal vulnerability in file upload functionality has\nbeen identified in Archer MR600 (v2, v3 \u0026 v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file\ninformation, an authenticated remote attacker with access to the affected\nupload functionality could upload a specially crafted file and cause it to be\nwritten outside the intended directory. \n\n\n\n\n\nSuccessful\nexploitation could allow an authenticated remote attacker to write files to\nunintended locations, potentially overwriting or modifying files\naccessible to the affected service; arbitrary code execution has not\nbeen demonstrated.","status":"published","published":"2026-09-10T21:17:44.683Z","modified":"2026-09-11T15:21:12.85Z","cvss":[{"version":"4.0","score":4.8,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/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-22"],"updated_at":"2026-11-02T14:12:46.271848Z"}]}}