Netskope Threat Labs

BROWSER-WEBKIT Apple WebKit JavaScriptCore remote code execution attempt

IPS-SWG

1 SID: 66868

First seen
August 2026
Last seen
September 2026

Detects web content that exploits CVE-2023-41993, a remote code execution flaw in Apple's JavaScriptCore that can run code when the engine processes crafted content. The rule matches the getter redefinition and object description probing that public exploits use to corrupt memory.