{"id":"CVE-2026-75489","aliases":["EUVD-2026-125267","GHSA-g6hm-9f8q-5ghc"],"status":"published","title":"Cudy TR3000 before 2.5.42 SMT Message Forgery via Probe Request Vendor IE","description":"Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity vulnerability in the mt_wifi Smart Mesh Technology (SMT) onboarding, which protects messages only with an AES-CBC key derived from public values and a CRC32 check. Adjacent unauthenticated attackers can forge SMT messages in Probe Request vendor IEs carrying an attacker-chosen SSID and pre-shared key, forcing unpaired devices to join attacker-controlled access points.","severity":{"version":"4.0","score":6.1,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00176,"percentile":0.07147,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-345"],"published":"2026-11-13T09:36:57Z","modified":"2026-11-13T12:31:44Z","products":[{"vendor":"shenzhen cudy technology co., ltd.","product":"tr3000 1.0"}],"references":[{"url":"https://www.cudy.com/en-us/pages/download-center/tr3000-1-0","tags":["release-notes"]},{"url":"https://d1jvyy13vm72kv.cloudfront.net/device/upgrade/m_upgrade_TR3000_256MB_Flash-R103-2.5.42-20261103-160202-sysupgrade_82672.zip","tags":["patch"]},{"url":"https://www.vulncheck.com/advisories/cudy-tr3000-before-2.5.42-smt-message-forgery-via-probe-request-vendor-ie","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75489"},{"url":"https://github.com/advisories/GHSA-g6hm-9f8q-5ghc"}],"sources":{"cve":[{"id":"CVE-2026-75489","title":"Cudy TR3000 before 2.5.42 SMT Message Forgery via Probe Request Vendor IE","description":"Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity vulnerability in the mt_wifi Smart Mesh Technology (SMT) onboarding, which protects messages only with an AES-CBC key derived from public values and a CRC32 check. Adjacent unauthenticated attackers can forge SMT messages in Probe Request vendor IEs carrying an attacker-chosen SSID and pre-shared key, forcing unpaired devices to join attacker-controlled access points.","status":"published","published":"2026-11-13T09:36:57.85Z","modified":"2026-11-13T15:52:55.071Z","cvss":[{"version":"4.0","score":6.1,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-345"],"updated_at":"2026-11-13T10:27:12.71329Z"}],"euvd":[{"id":"EUVD-2026-125267","description":"Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity vulnerability in the mt_wifi Smart Mesh Technology (SMT) onboarding, which protects messages only with an AES-CBC key derived from public values and a CRC32 check. Adjacent unauthenticated attackers can forge SMT messages in Probe Request vendor IEs carrying an attacker-chosen SSID and pre-shared key, forcing unpaired devices to join attacker-controlled access points.","status":"published","published":"2026-11-13T09:36:57Z","modified":"2026-11-13T15:52:55Z","cvss":[{"version":"4.0","score":6.1,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-13T14:38:51.246778Z"}],"ghsa":[{"id":"GHSA-g6hm-9f8q-5ghc","title":"Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity...","description":"Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity vulnerability in the mt_wifi Smart Mesh Technology (SMT) onboarding, which protects messages only with an AES-CBC key derived from public values and a CRC32 check. Adjacent unauthenticated attackers can forge SMT messages in Probe Request vendor IEs carrying an attacker-chosen SSID and pre-shared key, forcing unpaired devices to join attacker-controlled access points.","status":"published","published":"2026-11-13T12:31:43Z","modified":"2026-11-13T12:31:44Z","cvss":[{"version":"4.0","score":6.1,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/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":"medium"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"medium"}],"cwes":["CWE-345"],"updated_at":"2026-11-13T12:50:18.307659Z"}],"nvd":[{"id":"CVE-2026-75489","description":"Cudy TR3000 before 2.5.42 contains an insufficient verification of data authenticity vulnerability in the mt_wifi Smart Mesh Technology (SMT) onboarding, which protects messages only with an AES-CBC key derived from public values and a CRC32 check. Adjacent unauthenticated attackers can forge SMT messages in Probe Request vendor IEs carrying an attacker-chosen SSID and pre-shared key, forcing unpaired devices to join attacker-controlled access points.","status":"published","published":"2026-11-13T10:18:16.313Z","modified":"2026-11-13T16:19:30.437Z","cvss":[{"version":"4.0","score":6.1,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/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":"medium","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-345"],"updated_at":"2026-11-13T17:36:48.675401Z"}]}}