A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

Related CVEs

CVE-2021-30661

Key Information

GHSA ID

GHSA-79qq-9x66-f5r5

Published

May 24, 2022 7:13 PM

Last Modified

May 16, 2024 3:30 AM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 29, 2025 6:37 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.