{"id":"CVE-2026-21104","title":"Heap-based buffer overflow in KnoxVault trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to execute arbitrary code.","summary":"Heap-based buffer overflow in KnoxVault trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to execute arbitrary code.","severity":"medium","cvss":6.7,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-122"],"vendor":"samsung","product":"android","affected":["android = 15.0","android = 16.0","android = 17.0"],"published":"2026-09-09","updated":"2026-09-11","sourceUpdated":"2026-09-11T04:17:39.597","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-21104","references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09","label":"mobile.security@samsung.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-10T00:00:00+00:00"},"scores":{"nvd":6.7,"cna":7.1},"ingestedAt":"2026-09-13T09:35:26.964Z","epss":0.00101,"epssPercentile":0.01004,"slug":"CVE-2026-21104","body":"## Overview\n\nHeap-based buffer overflow in KnoxVault trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to execute arbitrary code.\n\n## Affected\n\n- `android = 15.0`\n- `android = 16.0`\n- `android = 17.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":36.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":56245,"id":"CVE-2026-21104","ts":1789074388725,"field":"cvss","old":"7.1","new":"6.7"},{"seq":56244,"id":"CVE-2026-21104","ts":1789074388725,"field":"severity","old":"high","new":"medium"}]}