Netskope Threat Labs

BROWSER-IE Microsoft Edge out of bounds write attempt

IPS-CFWIPS-SWG

2 SIDs: 45374, 48513

First seen
December 2023
Last seen
October 2026

Detects web content that exploits out-of-bounds write vulnerabilities in Microsoft Edge, including CVE-2018-0777 and CVE-2018-8629, which can allow code execution. The rule matches the getter redefinition, array grooming, and WebRTC transport setup that public exploits use to write beyond allocated buffers.