# CVE-2019-16256: SIMalliance Toolbox Browser Command Injection Vulnerability

> CVE-2019-16256: SIMalliance Toolbox Browser Command Injection Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2019-16256
Last updated: 2025-10-21T23:45:30Z

- Published: 2019-09-12 12:56 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 4.9%, 92th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-11-03, federal due date 2022-05-03, ransomware use: Unknown

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- SIMalliance: Toolbox Browser

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-16256)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2019-16256)
- [https://www.adaptivemobile.com/blog/simjacker-next-generation-spying-over-mobile](https://www.adaptivemobile.com/blog/simjacker-next-generation-spying-over-mobile)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2019-16256 · Markdown: https://rewindex.com/cve/CVE-2019-16256.md · JSON: https://rewindex.com/api/v1/cves/CVE-2019-16256 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:05:17.333Z