Vulnerability · Published Jul 29, 2025 · Assigned by apple

CVE-2025-43276

Medium 5.3

In plain English

A medium-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 65.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A logic error was addressed with improved error handling. This issue is fixed in macOS Sequoia 15.6. iCloud Private Relay may not activate when more than one user is logged in at the same time.

Affected products (as reported)

VendorProductVersions
Apple macOS 0 – before 15.6

Weakness: CWE-367 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References