{"id":"CVE-2026-21111","aliases":["EUVD-2026-74652","GHSA-x69q-4h23-g7jv"],"status":"published","title":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of...","description":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00142,"percentile":0.03553,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-09-09T04:48:01Z","modified":"2026-09-10T15:33:09Z","products":[{"vendor":"samsung mobile","product":"libsthmbc"}],"references":[{"url":"https://security.samsungmobile.com/serviceWeb.smsb?year=2026\u0026month=09"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21111"},{"url":"https://github.com/advisories/GHSA-x69q-4h23-g7jv"}],"sources":{"cve":[{"id":"CVE-2026-21111","description":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory.","status":"published","published":"2026-09-09T04:48:01.536Z","modified":"2026-09-10T14:11:03.793Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T13:41:42.05254Z"}],"euvd":[{"id":"EUVD-2026-74652","description":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory.","status":"published","published":"2026-09-09T04:48:01Z","modified":"2026-09-10T14:11:03Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:28:24.835649Z"}],"ghsa":[{"id":"GHSA-x69q-4h23-g7jv","title":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of...","description":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory.","status":"published","published":"2026-09-09T06:31:39Z","modified":"2026-09-10T15:33:09Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:11:41.43854Z"}],"nvd":[{"id":"CVE-2026-21111","description":"Out-of-bounds write in libsthmbc.so prior to One UI 8.5 allows local attackers to write out-of-bounds memory.","status":"published","published":"2026-09-09T05:17:23.64Z","modified":"2026-09-10T15:17:29.1Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:45.93749Z"}]}}