High severity8.8NVD Advisory· Published Dec 7, 2021· Updated Jun 17, 2026
CVE-2021-42990
CVE-2021-42990
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.
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Affected products
2- FlexiHub/FlexiHub For Windowsdescription
- Range: >2.0.4340,<5.3.14268
Patches
Vulnerability mechanics
References
1- www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/nvdExploitTechnical DescriptionThird Party Advisory
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