CVE-2025-43401CWE-20

CVE-2025-43401

High · published November 4, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
63.3
In the wild
Unconfirmed
What it is

⚡ A sneaky denial-of-service vulnerability could leave your macOS device gasping for air! Think of it like a restaurant where a single customer keeps ordering an endless stream of food, clogging up the kitchen and preventing anyone else from being served. This flaw allows a remote attacker to flood the system, leading to a complete traffic jam! An attacker could exploit this flaw to send excessive requests, causing your device to slow down or become unresponsive. This could halt critical tasks, leaving users frustrated and unable to access their applications or data. Absolutely devastating for productivity!

Put simply

Think of it like a restaurant where a single customer keeps ordering an endless stream of food, clogging up the kitchen and preventing anyone else from being served. This flaw allows a remote attacker to flood the system, leading to a complete traffic jam! This denial-of-service issue arises from insufficient validation in the affected macOS versions, allowing attackers to overwhelm the system with requests without proper defenses in place.

What to do

An attacker could exploit this flaw to send excessive requests, causing your device to slow down or become unresponsive. This could halt critical tasks, leaving users frustrated and unable to access their applications or data. Absolutely devastating for productivity! Upgrade immediately to macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, or macOS Tahoe 26.1 to patch this vulnerability. Regularly check for updates and consider implementing additional monitoring tools to catch unusual traffic patterns. Stay proactive! You've got this! Follow these steps to safeguard your device and keep things running smoothly! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01025 · 63.3th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2025-11-04T07:15Z
Affected products (2)
ProductVersionsFixed in
apple/macos< 14.8.214.8.2
apple/macos≥ 15.0, < 15.7.215.7.2
References (3)
EPSS history
Timeline
  • 04 NOV 01:16Z
    A denial-of-service issue was addressed with improved validation
    cvelistv5