CVE-2025-43402

WindowServer: An app may be able to cause unexpected system termination or corrupt process memory

CVE-2025-43402 is fixed in 3 products on 1 platform, first by Tahoe 26.1, released November 3, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.8

HIGH

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0022

12th percentile

The issue was addressed with improved memory handling.

Where it's fixed

Product	Fixed in	Fix	Released
macOS
Sequoia	15.7.4	Sequoia 15.7.4	Feb 11, 2026
Sonoma	14.8.4	Sonoma 14.8.4	Feb 11, 2026
Tahoe	26.1	Tahoe 26.1	Nov 3, 2025

Details

Published
November 3, 2025
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://support.apple.com/en-us/126349

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2025-43402">CVE-2025-43402 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.