AUGUST 4, 2026
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Case File

CVE-2021-42973

HIGH · CVSS 8.8 EPSS 0.48%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-07 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It may lead to a denial-of-service condition.

CVE
CVE-2021-42973
Severity
HIGH
CVSS
8.8
EPSS
0.48%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)