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CVE-2025-43506
Apple iCloud Private Relay Multiple User Activation Vulnerability
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.

INFO

Published Date :

Dec. 12, 2025, 9:15 p.m.

Last Modified :

Dec. 12, 2025, 9:15 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-43506 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
: Total Affected Vendor : 1 | Products : 1
Solution
Update macOS to version 26.1 to resolve iCloud Private Relay activation issue.
  • Update macOS to version 26.1.
  • Verify iCloud Private Relay is active.
  • Ensure only one user is logged in for Private Relay.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-43506.

URL Resource
https://support.apple.com/en-us/125634
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-43506 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-43506 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-43506 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-43506 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Dec. 12, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://support.apple.com/en-us/125634
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.