CVE-2025-43193

The 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 hidden memory mishap in macOS could lead to a complete service blackout! Imagine an app that brings your workflow to a crawl without any warning. 🔥 Think of this like a restaurant that can't serve customers because the kitchen's memory for orders just crashed — chaos ensues when too many requests collide, leaving patrons waiting indefinitely! An attacker could exploit this memory handling flaw to trigger a denial-of-service, effectively knocking your apps offline and leaving users frustrated and unable to access essential services. This could be absolutely devastating for businesses relying on timely app responses!

Put simply

Think of this like a restaurant that can't serve customers because the kitchen's memory for orders just crashed — chaos ensues when too many requests collide, leaving patrons waiting indefinitely! This critical vulnerability in macOS stems from improper memory handling, allowing an app to potentially cause a denial-of-service, rendering the system unresponsive under certain conditions.

What to do

An attacker could exploit this memory handling flaw to trigger a denial-of-service, effectively knocking your apps offline and leaving users frustrated and unable to access essential services. This could be absolutely devastating for businesses relying on timely app responses! To safeguard against this vulnerability, patch immediately by updating to macOS Sequoia 15.6, Sonoma 14.7.7, or Ventura 13.7.7. Regularly monitor and apply updates to maintain system integrity. You've got this! With the right updates in place, you’ll keep your systems running smoothly. 🛡️

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
0.00760 · 54.8th percentile
Published
2025-07-29T23:29Z
EPSS history
Timeline
  • 29 JUL 23:29Z
    The issue was addressed with improved memory handling
    cvelistv5