This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Sequoia 15.5. An app may be able to observe the hostnames of new network connections.
CVE ID: CVE-2025-31218
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.2
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vendor: Apple
Product: macOS
EPSS Score: 0.02% (probability of being exploited)
EPSS Percentile: 2.45% (scored less or equal to compared to others)
EPSS Date: 2025-06-10 (when was this score calculated)