CVE-2016-10226: Apple Safari

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

JavaScriptCore in WebKit, as distributed in Safari Technology Preview Release 18, allows remote attackers to cause a denial of service (bitfield out-of-bounds read and application crash) via crafted JavaScript code that is mishandled in the operatorString function, related to assembler/MacroAssemblerARM64.h, assembler/MacroAssemblerX86Common.h, and wasm/WasmB3IRGenerator.cpp.

Affected products

• Apple Safari: version 18 only

Published 2017-04-03. Last modified 2026-06-17.