CVE-2021-42987: Eltima USB Network Gate

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Eltima USB Network Gate is affected by Integer Overflow. IOCTL Handler 0x22001B in the USB Network Gate above 7.0.1370 below 9.2.2420 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.

Affected products

• Eltima USB Network Gate: after 7.0.1370, before 9.2.2420 (fixed in 9.2.2420)

Published 2021-12-07. Last modified 2026-06-17.