What’s Vulnerable › Vulnerabilities

CVE-2025-43294

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-15 · updated 2026-10-18
• Weakness: CWE-284

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.

Affected products

• Apple macOS: before 26.0 — fixed in 26.0

How to fix

Upgrade to a fixed version: Apple macOS 26.0. Check the vendor advisory for mitigations.

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

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