CVE-2021-42990

Published: Dec 7, 2021Modified: Jun 17, 2026

8.8

Vector

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

Exploitability: 2.0 / Impact: 6.0

Source: NVD

Description

FlexiHub For Windows is affected by Buffer Overflow. IOCTL Handler 0x22001B in the FlexiHub For Windows above 2.0.4340 below 5.3.14268 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.

Affected (1)

Products: Flexihub: Flexihub

1 product

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Flexihub Flexihub	After 2.0.4340 to 5.3.14268

Running on/with	Platform Versions
Microsoft Windows	All versions

Related CWEs

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (2)

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

Source: cve@mitre.org

ExploitTechnical DescriptionThird Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitTechnical DescriptionThird Party Advisory

Timeline

No history available yet.