CVE-2025-43343

9.8

CRITICAL CVSS 3.1

Apple Safari Web Content Processing Crash

Description

The issue was addressed with improved memory handling. This issue is fixed in tvOS 26, Safari 26, visionOS 26, watchOS 26, macOS Tahoe 26, iOS 26 and iPadOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.

INFO

Published Date :

Sept. 15, 2025, 11:15 p.m.

Last Modified :

Sept. 17, 2025, 2:05 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]

Affected Products

The following products are affected by CVE-2025-43343 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	tvos
4	Apple	watchos
5	Apple	safari
6	Apple	ipados
7	Apple	visionos

: Total Affected Vendor : 1 | Products : 7

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	CRITICAL				134c704f-9b21-4f2e-91b3-4a467353bcc0

Solution

Update all affected Apple operating systems and Safari to the latest versions.

Update tvOS to version 26.
Update Safari to version 26.
Update visionOS to version 26.
Update watchOS to version 26.

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-2025-43343.

URL	Resource
https://support.apple.com/en-us/125108	Release Notes Vendor Advisory
https://support.apple.com/en-us/125110	Release Notes Vendor Advisory
https://support.apple.com/en-us/125113	Release Notes Vendor Advisory
https://support.apple.com/en-us/125114	Release Notes Vendor Advisory
https://support.apple.com/en-us/125115	Release Notes Vendor Advisory
https://support.apple.com/en-us/125116	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-2025-43343 is associated with the following CWEs:

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

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-2025-43343 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

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-2025-43343 vulnerability anywhere in the article.

seclists.org

APPLE-SA-09-15-2025-11 Safari 26

Full Disclosure mailing list archives From: Apple Product Security via Fulldisclosure <fulldisclosure () seclists org> Date: Mon, 15 Sep 2025 16:37:47 -0700 -----BEGIN PGP SIGNED MESSAGE----- Hash: SH ...