{"id":"CVE-2026-21138","title":"Insufficient verification of data authenticity in Smart Switch prior to version 3.7.73 allows physical attackers to install arbitrary applications.","summary":"Insufficient verification of data authenticity in Smart Switch prior to version 3.7.73 allows physical attackers to install arbitrary applications.","severity":"medium","cvss":6.9,"cvssVector":"CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","cwe":["CWE-345"],"vendor":"Samsung Mobile","product":"Smart Switch","affected":["smart_switch (all versions)"],"published":"2026-10-12","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:17:38.033","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-21138","references":[{"url":"https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=10","label":"mobile.security@samsung.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T17:51:29.277737Z"},"cvssSource":"cna","epss":0.00099,"epssPercentile":0.00797,"ingestedAt":"2026-10-12T14:50:34.089Z","slug":"CVE-2026-21138","body":"## Overview\n\nInsufficient verification of data authenticity in Smart Switch prior to version 3.7.73 allows physical attackers to install arbitrary applications.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":38,"depthScoreParts":{"impact":38,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":220737,"id":"CVE-2026-21138","ts":1792026729074,"field":"cvss","old":null,"new":"6.9"},{"seq":220736,"id":"CVE-2026-21138","ts":1792026729074,"field":"severity","old":"none","new":"medium"}]}