CVE-2021-30805

A memory corruption issue was addressed with improved input validation

published September 8, 2021

CVSS
—
EPSS
3%
Percentile
87.8
In the wild
Unconfirmed
What it is

⚠️ A memory corruption issue lurks in macOS, and it could lead to arbitrary code execution with kernel privileges — that’s like a magician who can suddenly pull rabbits out of thin air! 🐇✨ Think of it like a restaurant where a sneaky diner can convince the chef to whip up off-menu items without proper checks — they could potentially order anything! This vulnerability allows an application to exploit the system’s memory, leading to unauthorized actions. An attacker could leverage this to execute arbitrary code with the highest level of access, meaning they could change settings, access sensitive data, or even take full control of your system. Yikes! This could lead to a significant security breach if left unaddressed.

Put simply

Think of it like a restaurant where a sneaky diner can convince the chef to whip up off-menu items without proper checks — they could potentially order anything! This vulnerability allows an application to exploit the system’s memory, leading to unauthorized actions. This vulnerability arises from insufficient input validation, resulting in memory corruption that can be exploited by a malicious application to gain kernel privileges.

What to do

An attacker could leverage this to execute arbitrary code with the highest level of access, meaning they could change settings, access sensitive data, or even take full control of your system. Yikes! This could lead to a significant security breach if left unaddressed. To protect your system, ensure you update to macOS Big Sur 11.5 or the latest Security Updates for Catalina and Mojave. Regularly check for updates to stay ahead of vulnerabilities like this one! You’ve got this! Stay vigilant and keep your systems updated for a safer experience! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03146 · 87.8th percentile
Published
2021-09-08T13:39Z
EPSS history
Timeline
  • 08 SEP 13:39Z
    A memory corruption issue was addressed with improved input validation
    cvelistv5