{"id":"CVE-2026-108473","title":"Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol","summary":"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\no…","severity":"high","cvss":8.7,"cvssVector":"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","cwe":["CWE-306"],"vendor":"TP-Link Systems Inc.","product":"HS103 v5","affected":["hs103_v5 < 1.1.3 Build 250908 Rel.112508","ep10_v1 < 1.1.1 Build 250908 Rel.112508","ep40_v1 < 1.1.0 Build 250225 Rel.171723","hs200_v5 < 1.1.2 Build 241220 Rel.165559","kp401_v1 < 1.1.2 Build 241223 Rel.094434","ks230_kit_v2 < 1.1.4 Build 241223 Rel.105830","kp405_v1 < 1.1.0 Build 250225 Rel.174632","hs220_v3 < 1.1.4 Build 241220 Rel.171050","kp115_v1 < 1.1.1 Build 250908 Rel.112945","hs210_v3 < 1.1.0 Build 250225 Rel.163425","hs300_v2 < 1.1.2 Build 241220 Rel.171333","kp200_v3 < 1.1.0 Build 250225 Rel.171724","kp303_v2 < 1.1.2 Build 241220 Rel.173321","ks200_v1 < 1.1.2 Build 241223 Rel.103857","ep40a_v1 < 1.1.1 Build 250908 Rel.112526","ks220_v1 < 1.1.3 Build 241223 Rel.105515","ks200m_v1 < 1.1.4 Build 241223 Rel.104700","es20m_v1 < 1.1.6 Build 250522 Rel.210254","ks220m_v1 < 1.1.6 Build 250522 Rel.210254","kp400_v3 < 1.1.0 Build 250225 Rel.171723","kl125_v4 < 1.1.1 Build 260710 Rel.082646","kl135_v2 < 1.1.1 Build 260710 Rel.082646","kl110_v4 < 1.1.1 Build 260710 Rel.082646","kl420l5_v1 < 1.4.2 Build 260605 Rel.035033"],"published":"2026-10-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T15:53:08.287","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-108473","references":[{"url":"https://www.tp-link.com/en/support/download/","label":"f23511db-6c3e-4e32-a477-6aa17d310630"},{"url":"https://www.tp-link.com/us/support/download/","label":"f23511db-6c3e-4e32-a477-6aa17d310630"},{"url":"https://www.tp-link.com/us/support/faq/5342/","label":"f23511db-6c3e-4e32-a477-6aa17d310630"}],"tags":["nvd","cve.org"],"epss":0.00275,"epssPercentile":0.19745,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-14T18:06:09.190374Z"},"cvssSource":"cna","ingestedAt":"2026-10-14T02:10:14.764Z","slug":"CVE-2026-108473","body":"## Overview\n\nMultiple\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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":221791,"id":"CVE-2026-108473","ts":1792035809335,"field":"cvss","old":null,"new":"8.7"},{"seq":221790,"id":"CVE-2026-108473","ts":1792035809335,"field":"severity","old":"none","new":"high"}]}