Back to Database
Status published
High
CVE-2021-42973
NoMachine Server is affected by Integer Overflow. IOCTL Handler 0x22001B...
Vulnerability Description
NoMachine Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-42973
Credits & Attribution
No credits recorded in the NVD database.
More from nomachine
View All →CVE-2022-48074
An issue in NoMachine before v8.2.3 allows attackers to execute...
Medium
5.3
CVE-2022-34043
Incorrect permissions for the folder C:\ProgramData\NoMachine\var\uninstall of Nomachine v7.9.2 allows...
High
7.3
CVE-2021-42986
NoMachine Enterprise Client is affected by Integer Overflow. IOCTL Handler...
High
8.8
CVE-2021-42983
NoMachine Enterprise Client is affected by Buffer Overflow. IOCTL Handler...
High
8.8
CVE-2021-42980
NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler...
High
8.8
Affected Vendor
nomachine
View all reports →Affected Software
server
Vulnerable Versions:
4.0.346
Timeline
Official Publish:
December 7th, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.