CVE-2025-43400

6.3

MEDIUM CVSS 3.1

Apple Font Out-of-Bounds Write Vulnerability

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, macOS Sequoia 15.7.1, visionOS 26.0.1, iOS 26.0.1 and iPadOS 26.0.1, iOS 18.7.1 and iPadOS 18.7.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.

INFO

Published Date :

Sept. 29, 2025, 6:15 p.m.

Last Modified :

Sept. 30, 2025, 5:12 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]

Affected Products

The following products are affected by CVE-2025-43400 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.

ID	Vendor	Product
1	Apple	macos
2	Apple	iphone_os
3	Apple	ipados
4	Apple	visionos

: Total Affected Vendor : 1 | Products : 4

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Score	Version	Severity	Vector	Exploitability Score	Impact Score	Source
	CVSS 3.1	MEDIUM				134c704f-9b21-4f2e-91b3-4a467353bcc0

Solution

Update affected macOS, visionOS, iOS, and iPadOS systems to the latest versions.

Apply macOS Sonoma 14.8.1 update.
Apply macOS Tahoe 26.0.1 update.
Apply macOS Sequoia 15.7.1 update.
Apply visionOS 26.0.1 update.

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-2025-43400.

URL	Resource
https://support.apple.com/en-us/125326	Release Notes Vendor Advisory
https://support.apple.com/en-us/125327	Release Notes Vendor Advisory
https://support.apple.com/en-us/125328	Release Notes Vendor Advisory
https://support.apple.com/en-us/125329	Release Notes Vendor Advisory
https://support.apple.com/en-us/125330	Release Notes Vendor Advisory
https://support.apple.com/en-us/125338	Release Notes Vendor Advisory

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-43400 is associated with the following CWEs:

CWE-787: Out-of-bounds Write

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-2025-43400 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-2025-43400 vulnerability anywhere in the article.

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seclists.org

APPLE-SA-09-29-2025-6 visionOS 26.0.1

Full Disclosure mailing list archives From: Apple Product Security via Fulldisclosure <fulldisclosure () seclists org> Date: Mon, 29 Sep 2025 12:58:26 -0700 -----BEGIN PGP SIGNED MESSAGE----- Hash: SH ...