This issue involves a memory buffer overflow in iPadOS, tvOS, Safari, iOS, watchOS, and macOS Monterey. The problem was addressed through improved bounds checks. Processing maliciously crafted web content may lead to arbitrary code execution. The vulnerability has been added to CISA’s Known Exploited Vulnerabilities catalog. A similar issue was found in webkitgtk and wpewebkit where processing maliciously crafted web content may also lead to arbitrary code execution.