VULNERABILITY INTELLIGENCE

CVE-2021-42687

CVSS score8.8 HIGH

EPSS probability0.48%

CISA KEVNot currently listed

Published2021-12-07

Last modified2026-06-17

Description

A Buffer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22005B allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.