CVE-2025-43189

This issue was addressed with improved memory handling

Critical · published July 29, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
54.8
In the wild
Unconfirmed
What it is

🔥 A crafty malicious app could peek right into your kernel memory! This critical vulnerability lurks in macOS, exposing sensitive data like family secrets. 😱 Think of your kernel memory as the 'secret vault' in a high-security bank. If an unauthorized app gets access, it’s like a thief cracking the vault open and sifting through everything inside without breaking a sweat! An attacker could potentially read sensitive information from kernel memory, which is a treasure trove of secrets such as passwords, cryptographic keys, and other data that should remain confidential. This could lead to unauthorized access to system resources and even complete control over the affected system. Absolutely devastating!

Put simply

Think of your kernel memory as the 'secret vault' in a high-security bank. If an unauthorized app gets access, it’s like a thief cracking the vault open and sifting through everything inside without breaking a sweat! CVE-2025-43189 involves insufficient memory handling in macOS, allowing malicious applications to read kernel memory when they shouldn’t have access, opening the door to all sorts of nefarious activities.

What to do

An attacker could potentially read sensitive information from kernel memory, which is a treasure trove of secrets such as passwords, cryptographic keys, and other data that should remain confidential. This could lead to unauthorized access to system resources and even complete control over the affected system. Absolutely devastating! Update your macOS to Sequoia 15.6 or Sonoma 14.7.7 immediately to close this critical security gap! It's crucial to regularly check for updates and apply patches to keep your system secure. 🛡️ You've got this! By staying updated, you're one step closer to keeping your digital fortress safe! 💪✨

The record
Technical detail
CVSS v3.1
9.8 · 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
0.00759 · 54.8th percentile
Published
2025-07-29T23:29Z
EPSS history
Timeline
  • 29 JUL 23:29Z
    This issue was addressed with improved memory handling
    cvelistv5