CVE-2021-30866: Apple iPadOS

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A user privacy issue was addressed by removing the broadcast MAC address. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. A device may be passively tracked by its WiFi MAC address.

Affected products

• Apple iPadOS: before 15.0 (fixed in 15.0)
• Apple iPhone OS: before 15.0 (fixed in 15.0)
• Apple macOS: before 12.0.1 (fixed in 12.0.1)
• Apple tvOS: before 15.0 (fixed in 15.0)
• Apple watchOS: before 8.0 (fixed in 8.0)

Published 2021-08-24. Last modified 2026-06-17.