{"id":"CVE-2025-9014","aliases":["EUVD-2026-2745","GHSA-fg67-2rcj-c4j8"],"status":"published","title":"Null Pointer Dereference Vulnerability on TL-WR841N","description":"A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00509,"percentile":0.43777,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-476"],"published":"2026-01-15T17:36:06Z","modified":"2026-06-17T10:08:09Z","products":[{"vendor":"tp-link","product":"tl-wr841n_firmware"},{"vendor":"tp-link systems inc.","product":"tl-wr841n v14"}],"references":[{"url":"https://www.tp-link.com/us/support/faq/4894/","tags":["vendor-advisory","Patch","Vendor Advisory"]},{"url":"https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware","tags":["patch","Product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9014"},{"url":"https://www.tp-link.com/us/support/faq/4894"},{"url":"https://github.com/advisories/GHSA-fg67-2rcj-c4j8"}],"sources":{"cve":[{"id":"CVE-2025-9014","title":"Null Pointer Dereference Vulnerability on TL-WR841N","description":"A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.","status":"published","published":"2026-01-15T17:36:06.139Z","modified":"2026-01-15T18:26:28.154Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:33.755525Z"}],"euvd":[{"id":"EUVD-2026-2745","description":"A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.","status":"published","published":"2026-01-15T17:36:06Z","modified":"2026-01-15T18:26:28Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:51.36047Z"}],"ghsa":[{"id":"GHSA-fg67-2rcj-c4j8","title":"A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of...","description":"A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.","status":"published","published":"2026-01-15T18:31:33Z","modified":"2026-01-30T21:31:22Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/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":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20","CWE-476"],"updated_at":"2026-11-02T15:05:59.660813Z"}],"nvd":[{"id":"CVE-2025-9014","description":"A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.","status":"published","published":"2026-01-15T18:16:38.1Z","modified":"2026-06-17T10:08:09.44Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/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","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-20","CWE-476"],"updated_at":"2026-11-02T14:11:57.915063Z"}]}}