{"id":"CVE-2026-21085","published":"2026-09-09T04:47:32Z","modified":"2026-09-11T03:56:41Z","title":"Out-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write…","vendor":"Samsung","product":"Samsung Mobile Devices","tier":"tail","description":{"text":"Out-of-bounds write in Keymaster trustlet prior to SMR Sep-2026 Release 1 allows local privileged attackers to write out-of-bounds memory.","provenance":"source","from":"CVE.org"},"cvss":{"score":8.4,"severity":"HIGH","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.0016,"percentile":0.05184,"provenance":"source"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09","tags":[]}],"priority":{"score":6.9,"factors":[{"name":"EPSS percentile","points":1.04},{"name":"CVSS severity","points":5.88}]},"vendorSlug":"samsung","affectedVersions":[{"vendor":"Samsung Mobile","product":"Samsung Mobile Devices","versions":["all versions"]}],"euvd":{"id":"EUVD-2026-74626","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-samsung-mobile-devices-cwe-787"}}