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CVE-2025-43421
Apple Safari Unexpected Process Crash Vulnerability
Description

Multiple issues were addressed by disabling array allocation sinking. This issue is fixed in iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.

INFO

Published Date :

Nov. 4, 2025, 2:15 a.m.

Last Modified :

Nov. 4, 2025, 2:15 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-43421 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Apply updates to disable array allocation sinking and prevent unexpected process crashes.
  • Update iOS to version 26.1.
  • Update iPadOS to version 26.1.
  • Update Safari to version 26.1.
  • Update visionOS to version 26.1.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-43421.

URL Resource
https://support.apple.com/en-us/125632
https://support.apple.com/en-us/125638
https://support.apple.com/en-us/125640
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-43421 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-43421 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-43421 vulnerability anywhere in the article.

  • CybersecurityNews
Apple Patches Multiple Critical Vulnerabilities in iOS 26.1 and iPadOS 26.1

Apple released iOS 26.1 and iPadOS 26.1, addressing multiple vulnerabilities that could lead to privacy breaches, app crashes, and potential data leaks for iPhone and iPad users. The update targets de ... Read more

Published Date: Nov 04, 2025 (6 hours, 43 minutes ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-43421 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Nov. 04, 2025

    Action Type Old Value New Value
    Added Description Multiple issues were addressed by disabling array allocation sinking. This issue is fixed in iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.
    Added Reference https://support.apple.com/en-us/125632
    Added Reference https://support.apple.com/en-us/125638
    Added Reference https://support.apple.com/en-us/125640
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.