SIMalliance Toolbox Browser Command Injection Vulnerability

Are you affected?

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• cpe trustedconnectivityalliance/s@t browserversion unspecified
• vendor SIMalliance Toolbox Browserversion unspecified

How to fix CVE-2019-16256

• Recommended remediation

  Apply updates per vendor instructions. CISA due date May 3, 2022.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Sep 12, 2019 · Catalog

   Detected

   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.

2. Nov 3, 2021 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. May 3, 2022 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jun 16, 2026 · Catalog

   Updated

   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.

Sources

• CISA KEVConfirmed exploitationCVE-2019-16256

  SIMalliance Toolbox Browser contains an command injection vulnerability that could allow remote attackers to retrieve location and IMEI information or execute a range of other attacks by modifying the attack message.

  cisa.gov
• CVE.orgVulnerability recordCVE-2019-16256

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2019-16256

  30-day exploitation probability 4.9%

  first.org
• NIST NVDVulnerability recordCVE-2019-16256

  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

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2019-16256

  SIMalliance Toolbox Browser contains an command injection vulnerability that could allow remote attackers to retrieve location and IMEI information or execute a range of other attacks by modifying the attack message.

  vulncheck.com

References

• CISA note · nvd.nist.gov
• Exploit · adaptivemobile.com
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.