Netskope Threat Labs

FILE-PDF Adobe Acrobat Reader invalid trailer memory corruption attempt

IPS-SWG

1 SID: 45866

First seen
January 2022
Last seen
October 2026

Detects a PDF exploiting CVE-2018-4901, memory corruption in Adobe Acrobat Reader's trailer parsing that can allow code execution. The rule matches the malformed document trailer that public exploits use to corrupt parser memory.