Integer Overflow Vulnerability in NoMachine Enterprise Client
CVE-2021-42986

8.8HIGH

Key Information:

Vendor

Nomachine

Status
Enterprise Client
Vendor
CVE Published:
7 December 2021

What is CVE-2021-42986?

NoMachine Enterprise Client is vulnerable to an Integer Overflow issue within its IOCTL handler. This flaw allows local attackers to exploit the functionality of the software. By crafting specific I/O Request Packets, an attacker can trigger arbitrary code execution in kernel mode or lead to memory corruption, resulting in a denial of service that may cause the operating system to crash. This vulnerability affects versions of the NoMachine Enterprise Client from above 4.0.346 to below 7.7.4.

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References

https://www.sentinelone.com/labs/usb-over-ethernet-multip...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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