CVE-2025-43506

HIGH
Published Dec 12, 2025 Modified Dec 18, 2025 CWE-843

Description

A logic error was addressed with improved error handling. This issue is fixed in macOS Tahoe 26.1. iCloud Private Relay may not activate when more than one user is logged in at the same time.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-843 CWE-843

Affected Products

Vendor Product
apple macos

References

Frequently Asked Questions

What is CVE-2025-43506? +
A logic error was addressed with improved error handling. This issue is fixed in macOS Tahoe 26.1. iCloud Private Relay may not activate when more than one user is logged in at the same time. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-43506? +
CVE-2025-43506 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-43506? +
CVE-2025-43506 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-2025-43506? +
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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