CVE-2021-42976

HIGH

NoMachine Enterprise Desktop <7.7.4 - Buffer Overflow

Title source: llm

Description

NoMachine Enterprise Desktop is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 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.

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 0.0017

EPSS Percentile 38.0%

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)

nomachine/enterprise_desktop 4.0.346 - 7.7.4

Published Dec 07, 2021

Tracked Since Feb 18, 2026