CVE-2020-9866

A buffer overflow was addressed with improved bounds checking

published October 27, 2020

CVSS
—
EPSS
2%
Percentile
80.1
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow was lurking in macOS, but it's been tamed! This could lead to arbitrary code execution if left unchecked. 🔥 Think of this vulnerability like a delivery truck overflowing with packages. If the truck's capacity isn't properly monitored, it can spill its contents everywhere, potentially causing chaos on the road! With a buffer overflow like this, an attacker could exploit the flaw to execute arbitrary code. This means they could take control of your system, run malicious programs, or even steal sensitive information, leading to an absolute disaster!

Put simply

Think of this vulnerability like a delivery truck overflowing with packages. If the truck's capacity isn't properly monitored, it can spill its contents everywhere, potentially causing chaos on the road! This vulnerability arises from inadequate bounds checking in memory allocation, allowing an overflow that could let attackers execute arbitrary code in the context of the affected application.

What to do

With a buffer overflow like this, an attacker could exploit the flaw to execute arbitrary code. This means they could take control of your system, run malicious programs, or even steal sensitive information, leading to an absolute disaster! To safeguard your system, update to macOS Catalina 10.15.6 or the latest security updates for Mojave and High Sierra. Regularly check for updates to ensure you're protected from any potential threats! You've got this! Keep your systems updated and secure, and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01947 · 80.1th percentile
Published
2020-10-27T20:42Z
EPSS history
Timeline
  • 27 OCT 20:42Z
    A buffer overflow was addressed with improved bounds checking
    cvelistv5