CVE-2019-16256
Published 2019-09-12 · Updated 2026-06-17 · Source cve@mitre.org
Summary
CVE-2019-16256 is a critical-severity (CVSS 9.8) vulnerability in SIMalliance Toolbox Browser. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns.
All 1 known-exploited SIMalliance vulnerabilities →Description
Some Samsung devices include the SIMalliance Toolbox Browser (aka S@T Browser) on the UICC, which might allow remote attackers to retrieve location and IMEI information, or retrieve other data or execute certain commands, via SIM Toolkit (STK) instructions in an SMS message, aka Simjacker.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: SIMalliance — Toolbox Browser
Name: SIMalliance Toolbox Browser Command Injection Vulnerability
Date added: 2021-11-03 · Due: 2022-05-03
Required action: Apply updates per vendor instructions.