CVE-2019-16257
CVSS v3
9.8
CRITICAL
EPSS Score
2.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Some Motorola 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.
Technical details
- Published
- 2019-09-12
Frequently asked questions
What is CVE-2019-16257?
Some Motorola 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.
Is CVE-2019-16257 actively exploited?
Active exploitation of CVE-2019-16257 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-16257?
CVE-2019-16257 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2019-16257 affecting your environment?
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