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TI-2021-19062 Aliases CVE-2021-42977GHSA-9cjc-8427-pcw9

NoMachine Enterprise Desktop is affected by Integer Overflow.

Priority LOW 39CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

NoMachine Enterprise Desktop is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop 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.

Why it matters now

EPSS 0.00497 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nomachine:enterprise_desktop:*:*:*:*:*:*:*:*after 4.0.346, before 7.7.4VulnerableNoMachine
  • cpe:2.3:a:nomachine:enterprise_desktop:*:*:*:*:*:*:*:* Versions after 4.0.346, before 7.7.4 Vulnerable ·NoMachine

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-42977
  2. 2026-10-03 Alias added: GHSA-9cjc-8427-pcw9

References

Exploit 1

  • TI-2021-19061 NoMachine Enterprise Desktop is affected by Buffer Overflow. CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences