CVE-2021-1864

A use after free issue was addressed with improved memory management

published September 8, 2021

CVSS
—
EPSS
2%
Percentile
82.0
In the wild
Unconfirmed
What it is

⚠️ A juggler's slip can lead to unexpected chaos! In this case, a use-after-free issue in iOS could let attackers execute arbitrary code with a sneaky JavaScript trick. 🔥 Think of it like a waiter clearing the table but accidentally leaving a knife behind. That misstep could lead to a dangerous situation if someone finds a way to use it! If exploited, an attacker could manipulate your device's memory to run unauthorized code, potentially compromising your data or hijacking your sessions. While the severity isn't officially ranked, the implications could be serious if left unaddressed!

Put simply

Think of it like a waiter clearing the table but accidentally leaving a knife behind. That misstep could lead to a dangerous situation if someone finds a way to use it! This vulnerability arises from improper memory management, allowing a situation where memory that should have been released is still accessible. An attacker with the ability to execute JavaScript could leverage this flaw to gain deeper access to device functionality.

What to do

If exploited, an attacker could manipulate your device's memory to run unauthorized code, potentially compromising your data or hijacking your sessions. While the severity isn't officially ranked, the implications could be serious if left unaddressed! To protect yourself, update your devices to iOS 14.5, iPadOS 14.5, watchOS 7.4, or tvOS 14.5. Keeping your software up-to-date is key to ensuring you have the latest security improvements! You've totally got this! Stay vigilant and keep those devices updated for ultimate security hero status! 🦸‍♂️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02155 · 82.0th percentile
Published
2021-09-08T14:48Z
EPSS history
Timeline
  • 08 SEP 14:48Z
    A use after free issue was addressed with improved memory management
    cvelistv5