Netskope Threat Labs

BROWSER-IE Microsoft Internet Explorer loadXML parseError.errorCode information disclosure attempt

IPS-SWG

2 SIDs: 40364, 41797

First seen
July 2024
Last seen
October 2026

Detects web content that exploits CVE-2016-3298 and CVE-2017-0022, information disclosure flaws in Internet Explorer's XML parsing. The rule matches the metafile protocol references and parse error queries that public exploits use to read cross-origin error state from XML documents.