Netskope Threat Labs

FILE-OTHER Microsoft Windows GDI32.dll cmap numUVSMappings overflow attempt

IPS-SWG

1 SID: 40942

First seen
October 2022
Last seen
July 2026

Detects a font exploiting CVE-2016-7274, an integer overflow in the Windows graphics character mapping handling that can allow privilege escalation. The rule matches the crafted mapping counts that public exploits use to corrupt kernel memory.