macOS Tahoe 26 ENV Variable Validation Flaw Allows Sensitive Data Access
CVE-2025-43294 Published on September 15, 2025
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in tvOS 26.1, macOS Tahoe 26, watchOS 26.1, iOS 26.1 and iPadOS 26.1. An app may be able to access sensitive user data.
Vulnerability Analysis
CVE-2025-43294 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2025-43294 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2025-43294
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Affected Versions
Apple tvOS:- Version unspecified and below 26.1 is affected.
- Version unspecified and below 26.1 is affected.
- Version unspecified and below 26 is affected.
- Version unspecified and below 26.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.