Firetruck

CVE-2021-30663

KEV
Updated Oct 21, 2025 · PUBLISHED
View KEV entry →

Description

Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain an integer overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
macOSApple / macOS>= unspecified, < 11.3affected
macOSApple / macOS>= unspecified, < 14.5affected
macOSApple / macOS>= unspecified, < 12.5affected
macOSApple / macOS>= unspecified, < 14.6affected
macOSApple / macOS>= unspecified, < 14.1affected