{"id":"CVE-2026-108473","aliases":["EUVD-2026-100759","GHSA-jmmx-r2fg-mcgh"],"status":"published","title":"Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices","description":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00275,"percentile":0.20087,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-10-14T00:06:08Z","modified":"2026-10-15T15:53:08Z","products":[{"vendor":"tp-link systems inc.","product":"ep10 v1"},{"vendor":"tp-link systems inc.","product":"ep40 v1"},{"vendor":"tp-link systems inc.","product":"ep40a v1"},{"vendor":"tp-link systems inc.","product":"es20m v1"},{"vendor":"tp-link systems inc.","product":"hs103 v5"},{"vendor":"tp-link systems inc.","product":"hs200 v5"},{"vendor":"tp-link systems inc.","product":"hs210 v3"},{"vendor":"tp-link systems inc.","product":"hs220 v3"},{"vendor":"tp-link systems inc.","product":"hs300 v2"},{"vendor":"tp-link systems inc.","product":"kl110 v4"},{"vendor":"tp-link systems inc.","product":"kl125 v4"},{"vendor":"tp-link systems inc.","product":"kl135 v2"},{"vendor":"tp-link systems inc.","product":"kl420l5 v1"},{"vendor":"tp-link systems inc.","product":"kp115 v1"},{"vendor":"tp-link systems inc.","product":"kp200 v3"},{"vendor":"tp-link systems inc.","product":"kp303 v2"},{"vendor":"tp-link systems inc.","product":"kp400 v3"},{"vendor":"tp-link systems inc.","product":"kp401 v1"},{"vendor":"tp-link systems inc.","product":"kp405 v1"},{"vendor":"tp-link systems inc.","product":"ks200 v1"},{"vendor":"tp-link systems inc.","product":"ks200m v1"},{"vendor":"tp-link systems inc.","product":"ks220 v1"},{"vendor":"tp-link systems inc.","product":"ks220m v1"},{"vendor":"tp-link systems inc.","product":"ks230 kit v2"}],"references":[{"url":"https://www.tp-link.com/us/support/download/","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5342/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108473"},{"url":"https://www.tp-link.com/en/support/download"},{"url":"https://www.tp-link.com/us/support/download"},{"url":"https://www.tp-link.com/us/support/faq/5342"},{"url":"https://github.com/advisories/GHSA-jmmx-r2fg-mcgh"}],"sources":{"cve":[{"id":"CVE-2026-108473","title":"Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices","description":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.","status":"published","published":"2026-10-14T00:06:08.695Z","modified":"2026-10-14T18:06:29.15Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:20:10.510075Z"}],"euvd":[{"id":"EUVD-2026-100759","description":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.","status":"published","published":"2026-10-14T00:06:08Z","modified":"2026-10-14T18:06:29Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:13.785562Z"}],"ghsa":[{"id":"GHSA-jmmx-r2fg-mcgh","title":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice...","description":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.","status":"published","published":"2026-10-14T03:30:37Z","modified":"2026-10-14T03:30:37Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/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-306"],"updated_at":"2026-11-02T15:13:22.12395Z"}],"nvd":[{"id":"CVE-2026-108473","description":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.","status":"published","published":"2026-10-14T01:17:06.03Z","modified":"2026-10-15T15:53:08.287Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/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-306"],"updated_at":"2026-11-02T14:12:58.630796Z"}]}}