CVE-2021-42688

PoC —

CVSS 3.1

8.8 high

EPSS

<1%p40

Published

Dec 7, 2021 (Dec 7, 2021)

Modified

Jun 17, 2026

Description

An Integer Overflow vulnerability exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22005B in the Accops HyWorks Windows Client prior to v 3.2.8.200 allow 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.

Vendors: accops
Products: hyworks windows client
Weakness: CWE-190
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

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