{"id":"CVE-2018-21058","aliases":["EUVD-2018-13576","GHSA-hx4h-wm85-vg58"],"status":"published","title":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890...","description":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018).","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00275,"percentile":0.201,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-327"],"published":"2020-04-08T17:43:59Z","modified":"2026-06-17T01:54:03Z","products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://security.samsungmobile.com/securityUpdate.smsb","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-21058"},{"url":"https://github.com/advisories/GHSA-hx4h-wm85-vg58"}],"sources":{"cve":[{"id":"CVE-2018-21058","description":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018).","status":"published","published":"2020-04-08T17:43:59Z","modified":"2024-08-05T12:19:27.522Z","updated_at":"2026-11-02T14:35:02.289647Z"}],"euvd":[{"id":"EUVD-2018-13576","description":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018).","status":"published","published":"2020-04-08T17:43:59Z","modified":"2024-08-05T12:19:27Z","updated_at":"2026-11-03T02:39:28.765449Z"}],"ghsa":[{"id":"GHSA-hx4h-wm85-vg58","title":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890...","description":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018).","status":"published","published":"2022-05-24T17:13:42Z","modified":"2023-01-29T05:02:07Z","updated_at":"2026-11-02T14:44:59.63481Z"}],"nvd":[{"id":"CVE-2018-21058","description":"An issue was discovered on Samsung mobile devices with N(7.0), O(8.0) (exynos7420 or Exynos 8890/8996 chipsets) software. Cache attacks can occur against the Keymaster AES-GCM implementation because T-Tables are used; the Cryptography Extension (CE) is not used. The Samsung ID is SVE-2018-12761 (September 2018).","status":"published","published":"2020-04-08T18:15:13.807Z","modified":"2026-06-17T01:54:03.157Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:05:00.03074Z"}]}}