CVE-2019-16256KEV Β· OVERDUE

SIMalliance Toolbox Browser Command Injection Vulnerability

Critical Β· published September 12, 2019

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 92.1th percentile for exploit probability.

1634
days past CISA
deadline
CVSS v3.1
9.8
EPSS
5%
Percentile
92.1
In the wild
Confirmed
What it is

🚨 A crafty SMS can lead attackers straight to your location and IMEI number! 😱 This sneaky vulnerability affects some Samsung devices using the SIMalliance Toolbox Browser (S@T Browser). Think of this as a secret delivery service that opens your front door with a simple text message. The SIM Toolkit (STK) instructions act like magical keys, allowing attackers to peek inside and see all your important details without you even knowing! πŸ“¦πŸ”‘ If exploited, an attacker could track your movements, harvest sensitive information, or even remotely control your device! This is absolutely devastating for anyone relying on these devices, potentially leading to identity theft and unauthorized access to personal data. 🚨

Put simply

Think of this as a secret delivery service that opens your front door with a simple text message. The SIM Toolkit (STK) instructions act like magical keys, allowing attackers to peek inside and see all your important details without you even knowing! πŸ“¦πŸ”‘ This vulnerability, known as Simjacker, allows remote attackers to exploit the SIM Toolkit via carefully crafted SMS messages to access sensitive data and commands stored in the UICC of affected Samsung devices.

What to do

If exploited, an attacker could track your movements, harvest sensitive information, or even remotely control your device! This is absolutely devastating for anyone relying on these devices, potentially leading to identity theft and unauthorized access to personal data. 🚨 Upgrade your device's firmware to the latest version to eliminate this risk, and reach out to your carrier for additional security measures. Always keep an eye on your text messages, and consider disabling SIM Toolkit features if available! πŸ”₯πŸ›‘οΈ You've got this! With the right precautions, you can keep your devices safe and secure. 🌟

The record
Technical detail
CVSS v3.1
9.8 Β· CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.04949 Β· 92.1th percentile
Published
2019-09-12T12:56Z
KEV added
2021-11-03 Β· due 2022-05-03
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV β€” remediate by May 3
    kev
  • 12 SEP 12:56Z
    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…
    cvelistv5