CVE-2021-1748: Apple iPadOS

High severity, CVSS 8.8. EPSS: 2.7% chance of exploitation in the next 30 days.

A validation issue was addressed with improved input sanitization. This issue is fixed in tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.

Affected products

• Apple iPadOS: before 14.4 (fixed in 14.4)
• Apple iPhone OS: before 14.4 (fixed in 14.4)
• Apple tvOS: before 14.4 (fixed in 14.4)
• Apple watchOS: before 7.3 (fixed in 7.3)

Published 2021-04-02. Last modified 2026-06-17.