CVE-2021-1796

An out-of-bounds write was addressed with improved input validation

published April 2, 2021

CVSS
—
EPSS
2%
Percentile
81.0
In the wild
Unconfirmed
What it is

⚠️ Watch out, iOS users! An out-of-bounds write could let a crafty attacker slip in arbitrary code, like a party crasher sneaking through an unlocked door! 🚪 Imagine your home is your device, and just like a door without a lock, this vulnerability allows someone to wander in uninvited. If they know how to manipulate the inputs, they could set up shop right in your living room—yikes! This flaw could allow an attacker to execute code remotely, potentially taking control of your device or accessing sensitive information. The thought of someone rummaging through your personal belongings is absolutely devastating!

Put simply

Imagine your home is your device, and just like a door without a lock, this vulnerability allows someone to wander in uninvited. If they know how to manipulate the inputs, they could set up shop right in your living room—yikes! The vulnerability arises from an out-of-bounds write, which happens when data is written outside the intended memory space. This can lead to the execution of malicious code, making the device act in unexpected ways.

What to do

This flaw could allow an attacker to execute code remotely, potentially taking control of your device or accessing sensitive information. The thought of someone rummaging through your personal belongings is absolutely devastating! To secure your device, update to iOS 14.4 or iPadOS 14.4 immediately. Staying current with software updates is your first line of defense. Don’t forget to enable automatic updates to patch future vulnerabilities seamlessly! You've got this! Secure your device today and reclaim your peace of mind! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02041 · 81.0th percentile
Published
2021-04-02T18:03Z
EPSS history
Timeline
  • 02 APR 18:03Z
    An out-of-bounds write was addressed with improved input validation
    cvelistv5