CVE-2025-43294
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-09-15
Last updated on: 2026-04-02
Assigner: Apple Inc.
Description
Description
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26, tvOS 26.1, watchOS 26.1. An app may be able to access sensitive user data.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | macos | to 26.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-284 | The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves improper handling of environment variables in macOS Tahoe 26. Due to insufficient validation, an application may exploit this issue to access sensitive user data.
How can this vulnerability impact me? :
An attacker could use this vulnerability to gain unauthorized access to sensitive user data through an application, potentially compromising your privacy and security.
What immediate steps should I take to mitigate this vulnerability?
Update your system to macOS Tahoe 26 or later, as this version includes the fix with improved validation for the environment variable handling issue.
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