CVE-2021-42986
8.8 · HIGHOverview
CVE-2021-42986 is a high-severity vulnerability affecting nomachine enterprise_client. It was published on December 7, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
NoMachine Enterprise Client is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client 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.
Remediation
Check the references section for vendor advisories and patches from nomachine. Update enterprise_client to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nomachine | enterprise_client | >= 0, < 7.7.4 | Affected |
Frequently Asked Questions
What is CVE-2021-42986?
CVE-2021-42986 is a high-severity vulnerability affecting nomachine enterprise_client. It was published on December 7, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-42986?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-42986?
Check the references section for vendor advisories and patches from nomachine. Update enterprise_client to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-42986?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-42986 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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