{"id":"CVE-2026-76649","aliases":["EUVD-2026-67935","GHSA-2cvh-668x-j624"],"status":"published","title":"Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request Processing in TP-Link TL-WR841N","description":"A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\n\n\n\n\n\n\n\nSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/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":0.00268,"percentile":0.19083,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-08-28T20:18:57Z","modified":"2026-09-01T20:50:58Z","products":[{"vendor":"tp-link system inc.","product":"tl-wr841n v14"},{"vendor":"tp-link systems inc.","product":"tl-wr841n v14"}],"references":[{"url":"https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5270/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76649"},{"url":"https://www.tp-link.com/us/support/faq/5270"},{"url":"https://github.com/advisories/GHSA-2cvh-668x-j624"}],"sources":{"cve":[{"id":"CVE-2026-76649","title":"Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request Processing in TP-Link TL-WR841N","description":"A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\n\n\n\n\n\n\n\nSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.","status":"published","published":"2026-08-28T20:18:57.764Z","modified":"2026-08-31T18:37:30.759Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T13:46:21.568011Z"}],"euvd":[{"id":"EUVD-2026-67935","description":"A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\n\n\n\n\n\n\n\nSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.","status":"published","published":"2026-08-28T20:18:57Z","modified":"2026-08-31T18:37:30Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:01:20.215322Z"}],"ghsa":[{"id":"GHSA-2cvh-668x-j624","title":"A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when...","description":"A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\n\n\n\n\n\n\n\nSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.","status":"published","published":"2026-08-29T00:31:03Z","modified":"2026-08-29T00:31:12Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/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"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:11:09.499721Z"}],"nvd":[{"id":"CVE-2026-76649","description":"A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\n\n\n\n\n\n\n\nSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.","status":"published","published":"2026-08-28T22:16:53.25Z","modified":"2026-09-01T20:50:58.753Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/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"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:12:42.366888Z"}]}}