CVE-2025-43294

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 v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
apple	macos	< 26.0

References

Other References

https://support.apple.com/en-us/125110 https://support.apple.com/en-us/125632 https://support.apple.com/en-us/125637 https://support.apple.com/en-us/125639 http://seclists.org/fulldisclosure/2025/Sep/53

Frequently Asked Questions

What is CVE-2025-43294? +

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. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2025-43294? +

CVE-2025-43294 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-43294? +

CVE-2025-43294 affects products from apple, specifically: macos. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-43294? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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