This issue was addressed with improved checks. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing a maliciously crafted dfont file may lead to arbitrary code execution.

Related CVEs

CVE-2021-30840

Key Information

GHSA ID

GHSA-f3p9-xcq6-mf4q

Published

May 24, 2022 7:19 PM

Last Modified

May 24, 2022 7:19 PM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 13, 2025 6:30 AM

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