How severe is CVE-2019-16256?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-16256 known to be exploited?

Yes. CVE-2019-16256 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Vulnerability in Trustedconnectivityalliance S\@t_browser

CVE-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 (…

EPSS: 0.049 (91.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Trustedconnectivityalliance S\@t_browser
N/a — versions n/a

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2019-16256?: CVE-2019-16256 is a critical-severity vulnerability in Trustedconnectivityalliance S\@t_browser. CVSS score: 9.8/10. Published 2019-09-12.
How severe is CVE-2019-16256?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-16256 known to be exploited?: Yes. CVE-2019-16256 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.