{"id":"CVE-2026-21085","title":"Out-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory.","summary":"Out-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory.","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-787"],"vendor":"samsung","product":"android","affected":["android = 14.0","android = 15.0","android = 16.0","android = 17.0"],"published":"2026-09-09","updated":"2026-09-11","sourceUpdated":"2026-09-11T04:17:35.460","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-21085","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":8.4},"ingestedAt":"2026-09-13T04:25:52.155Z","epss":0.00109,"epssPercentile":0.01386,"slug":"CVE-2026-21085","body":"## Overview\n\nOut-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory.\n\n## Affected\n\n- `android = 14.0`\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":56229,"id":"CVE-2026-21085","ts":1789074388651,"field":"cvss","old":"8.4","new":"6.7"},{"seq":56228,"id":"CVE-2026-21085","ts":1789074388651,"field":"severity","old":"high","new":"medium"}]}