CVE-2021-42687

HIGH

Accops Hyworks Windows Client < 3.2.8.200 - Buffer Overflow

Title source: rule

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.

References (1)

Core 1

Core References

Exploit, Technical Description, Third Party Advisory x_refsource_misc

https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/

Scores

CVSS v3 8.8

EPSS 0.0008

EPSS Percentile 22.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

CWE

CWE-120

Status published

Products (1)

accops/hyworks_windows_client < 3.2.8.200

Published Dec 07, 2021

Tracked Since Feb 18, 2026