{"id":"CVE-2021-25339","aliases":["EUVD-2021-12235","GHSA-6ffc-qmf6-7p73"],"status":"published","title":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1...","description":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00119,"percentile":0.0178,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2021-03-04T21:00:23Z","modified":"2026-06-17T03:41:54Z","products":[{"vendor":"google","product":"android"},{"vendor":"samsung mobile","product":"samsung mobile devices"}],"references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://security.samsungmobile.com","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25339"},{"url":"https://github.com/advisories/GHSA-6ffc-qmf6-7p73"}],"sources":{"cve":[{"id":"CVE-2021-25339","description":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.","status":"published","published":"2021-03-04T21:00:23Z","modified":"2024-08-03T20:03:05.208Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-12235","description":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.","status":"published","published":"2021-03-04T21:00:23Z","modified":"2024-08-03T20:03:05Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L","level":"medium"}],"updated_at":"2026-11-03T03:24:53.302862Z"}],"ghsa":[{"id":"GHSA-6ffc-qmf6-7p73","title":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1...","description":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.","status":"published","published":"2022-05-24T17:43:41Z","modified":"2023-01-29T05:05:56Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:45:54.702484Z"}],"nvd":[{"id":"CVE-2021-25339","description":"Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.","status":"published","published":"2021-03-04T21:15:13.823Z","modified":"2026-06-17T03:41:54Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:06:50.399901Z"}]}}