{"id":"CVE-2026-17250","aliases":["EUVD-2026-64006","GHSA-82fj-885j-3xg6"],"status":"published","title":"Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling","description":"A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.","severity":{"version":"4.0","score":8.5,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00295,"percentile":0.2233,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-08-21T17:16:38Z","modified":"2026-10-14T19:10:00Z","products":[{"vendor":"tp-link systems inc.","product":"tl-mr6400 v7.0"}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/tw/support/download/tl-mr6400/v7/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5259/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17250"},{"url":"https://www.tp-link.com/us/support/faq/5259"},{"url":"https://github.com/advisories/GHSA-82fj-885j-3xg6"}],"sources":{"cve":[{"id":"CVE-2026-17250","title":"Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling","description":"A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.","status":"published","published":"2026-08-21T17:16:38.888Z","modified":"2026-08-25T03:56:42.953Z","cvss":[{"version":"4.0","score":8.5,"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","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:19:54.84674Z"}],"euvd":[{"id":"EUVD-2026-64006","description":"A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.","status":"published","published":"2026-08-21T17:16:38Z","modified":"2026-08-25T03:56:42Z","cvss":[{"version":"4.0","score":8.5,"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","level":"high"}],"updated_at":"2026-11-02T18:01:33.760029Z"}],"ghsa":[{"id":"GHSA-82fj-885j-3xg6","title":"A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL...","description":"A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.","status":"published","published":"2026-08-21T18:34:58Z","modified":"2026-08-21T18:35:07Z","cvss":[{"version":"4.0","score":8.5,"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/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"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:10:50.012908Z"}],"nvd":[{"id":"CVE-2026-17250","description":"A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.","status":"published","published":"2026-08-21T18:16:47.45Z","modified":"2026-10-14T19:10:00.297Z","cvss":[{"version":"4.0","score":8.5,"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/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"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:40.665005Z"}]}}