Netskope Threat Labs

FILE-PDF Adobe Acrobat heap buffer overflow attempt

IPS-SWG

1 SID: 57137

First seen
July 2025
Last seen
July 2025

Detects a PDF exploiting CVE-2021-21017, a heap buffer overflow in Adobe Acrobat's JavaScript interface handling that can allow code execution. The rule matches the property overrides that public exploits use to overflow the interface buffer.