Netskope Threat Labs

BROWSER-IE Microsoft Edge scripting engine memory corruption attempt

IPS-CFWIPS-SWG

13 SIDs: 45376, 45626, 45628, 46212, 50911, 51425, 52610, 52989, 64857, 200064, 200300, 200301, 200347

First seen
December 2023
Last seen
October 2026

Detects web content that exploits memory corruption vulnerabilities in Microsoft's scripting engines, including CVE-2018-0769, CVE-2018-0834, CVE-2017-11841, and dozens more fixed from 2017 through 2025, which can allow code execution. The rule matches the float grooming, optimization warmup, and heap layout patterns that public exploits share across this wide family of flaws.