{"id":"CVE-2026-17252","aliases":["EUVD-2026-64008","GHSA-whg2-2j4x-jfcp"],"status":"published","title":"Unauthenticated Denial of Service via Composed HTTP Parsing and Stack-Based Out-of-Bounds Write Vulnerability in TL-MR6400 Web Management Interface","description":"A\nstack-based out-of-bounds write vulnerability exists in the login request\nhandling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability\nby sending a specially crafted malformed HTTP request. \n\n\n\n\n\nSuccessful\nexploitation may cause the web service process to crash, resulting in a\ndenial-of-service condition and temporary loss of access to the router's web\nmanagement interface.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00268,"percentile":0.19084,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-08-21T17:16:51Z","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-2026-17252"},{"url":"https://www.tp-link.com/us/support/faq/5259"},{"url":"https://github.com/advisories/GHSA-whg2-2j4x-jfcp"}],"sources":{"cve":[{"id":"CVE-2026-17252","title":"Unauthenticated Denial of Service via Composed HTTP Parsing and Stack-Based Out-of-Bounds Write Vulnerability in TL-MR6400 Web Management Interface","description":"A\nstack-based out-of-bounds write vulnerability exists in the login request\nhandling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability\nby sending a specially crafted malformed HTTP request. \n\n\n\n\n\nSuccessful\nexploitation may cause the web service process to crash, resulting in a\ndenial-of-service condition and temporary loss of access to the router's web\nmanagement interface.","status":"published","published":"2026-08-21T17:16:51.552Z","modified":"2026-09-03T23:30:17.745Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:19:54.84674Z"}],"euvd":[{"id":"EUVD-2026-64008","description":"A\nstack-based out-of-bounds write vulnerability exists in the login request\nhandling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability\nby sending a specially crafted malformed HTTP request. \n\n\n\n\n\nSuccessful\nexploitation may cause the web service process to crash, resulting in a\ndenial-of-service condition and temporary loss of access to the router's web\nmanagement interface.","status":"published","published":"2026-08-21T17:16:51Z","modified":"2026-09-03T23:30:17Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:01:13.160542Z"}],"ghsa":[{"id":"GHSA-whg2-2j4x-jfcp","title":"A\nstack-based out-of-bounds write vulnerability exists in the login request\nhandling...","description":"A\nstack-based out-of-bounds write vulnerability exists in the login request\nhandling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability\nby sending a specially crafted malformed HTTP request. \n\n\n\n\n\nSuccessful\nexploitation may cause the web service process to crash, resulting in a\ndenial-of-service condition and temporary loss of access to the router's web\nmanagement interface.","status":"published","published":"2026-08-21T18:34:58Z","modified":"2026-08-21T18:35:08Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-787"],"updated_at":"2026-11-02T15:10:50.012908Z"}],"nvd":[{"id":"CVE-2026-17252","description":"A\nstack-based out-of-bounds write vulnerability exists in the login request\nhandling functionality of the administrative web interface of TP-Link TL-MR6400 v7 routers. An unauthenticated adjacent attacker can trigger the vulnerability\nby sending a specially crafted malformed HTTP request. \n\n\n\n\n\nSuccessful\nexploitation may cause the web service process to crash, resulting in a\ndenial-of-service condition and temporary loss of access to the router's web\nmanagement interface.","status":"published","published":"2026-08-21T18:16:47.803Z","modified":"2026-10-14T19:10:00.297Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-787"],"updated_at":"2026-11-02T14:12:40.665005Z"}]}}