CVE-2026-43743
Apple iOS/iPadOS/macOS Race Condition Denial-of-Service
Description
A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination.
INFO
Published Date :
June 29, 2026, 8:17 p.m.
Last Modified :
June 30, 2026, 7:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-43743
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update iOS to 26.5.2 or later.
- Update iPadOS to 26.5.2 or later.
- Update macOS to 26.5.2 or later.
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-2026-43743.
| URL | Resource |
|---|---|
| https://support.apple.com/en-us/127594 | Vendor Advisory |
| https://support.apple.com/en-us/127595 | 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-2026-43743 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-2026-43743
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-2026-43743 vulnerability anywhere in the article.
-
The Cyber Express
Apple Security Update Patches 30+ Vulnerabilities in iOS 26.5.2
The latest Apple Security Update brings fixes for more than 30 security vulnerabilities in iOS 26.5.2 and iPadOS 26.5.2, addressing flaws across the kernel, WebKit, WebRTC, libxslt, and IOGPUFamily. R ... Read more
The following table lists the changes that have been made to the
CVE-2026-43743 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.
-
Initial Analysis by [email protected]
Jun. 30, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 26.5.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 26.5.2 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 26.0 up to (excluding) 26.5.2 Added Reference Type Apple Inc.: https://support.apple.com/en-us/127594 Types: Vendor Advisory Added Reference Type Apple Inc.: https://support.apple.com/en-us/127595 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-362 Added SSVC {'id': 'CVE-2026-43743', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-29T21:25:21.240645Z'} -
New CVE Received by [email protected]
Jun. 29, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apple', 'product': 'iOS and iPadOS', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '26.5.2', 'versionType': 'custom'}]}, {'vendor': 'Apple', 'product': 'macOS', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '26.5.2', 'versionType': 'custom'}]}] Added Description A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination. Added Reference https://support.apple.com/en-us/127594 Added Reference https://support.apple.com/en-us/127595