{"id":"CVE-2026-21107","title":"Out-of-bounds write in Samsung Notes prior to version 4.4.45.5 allows local attackers to write out-of-bounds memory.","summary":"Out-of-bounds write in Samsung Notes prior to version 4.4.45.5 allows local attackers to write out-of-bounds memory.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-787"],"vendor":"samsung","product":"notes","affected":["notes < 4.4.45.5"],"patched":["notes 4.4.45.5"],"published":"2026-09-09","updated":"2026-09-23","sourceUpdated":"2026-09-23T20:19:33.967","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-21107","references":[{"url":"https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=09","label":"mobile.security@samsung.com"}],"tags":["nvd","cve.org"],"epss":0.00094,"epssPercentile":0.00577,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-09T20:24:09.602799Z"},"scores":{"nvd":5.5,"cna":6.9},"ingestedAt":"2026-09-09T05:00:01.752Z","slug":"CVE-2026-21107","body":"## Overview\n\nOut-of-bounds write in Samsung Notes prior to version 4.4.45.5 allows local attackers to write out-of-bounds memory.\n\n## Affected\n\n- `notes < 4.4.45.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `notes 4.4.45.5`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":209866,"id":"CVE-2026-21107","ts":1790195565745,"field":"cvss","old":"6.9","new":"5.5"}]}