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CVE-2021-30858

KEV
Updated Oct 21, 2025 · PUBLISHED
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Description

Apple iOS, iPadOS, and macOS WebKit contain a use-after-free 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
iOSApple / iOS>= unspecified, < 14.8affected
macOSApple / macOS>= unspecified, < 11.6affected