CVE-2021-42980

HIGH

NoMachine Cloud Server <7.7.4 - Buffer Overflow

Title source: llm
STIX 2.1

Description

NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server 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

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/cloud_server 4.0.346 - 7.7.4
Published Dec 07, 2021
Tracked Since Feb 18, 2026