An issue was discovered on Samsung mobile devices with N(7.x) O(8.x) and P(9.0) (MSM8996 MSM8998 Exynos7420 Exynos7870 Exynos8890 and Exynos8895 chipsets) software. A heap overflow in the keymaster Trustlet allows attackers to write to TEE memory and achieve arbitrary code execution. The Samsung ID is SVE-2019-14126 (May 2019).