Windows Kernel Elevation of Privilege Vulnerability in Microsoft Products
CVE-2026-42984

7HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Windows 11 Version 23h2
Vendor
CVE Published:
9 June 2026

What is CVE-2026-42984?

A vulnerability in the Windows Kernel manifesting as a use after free condition can allow an authorized attacker to execute malicious code with elevated privileges. This exploitation can enable attackers to gain control over the system, execute arbitrary commands, or access sensitive data, thus posing a significant risk to the integrity and confidentiality of the affected systems. Administrators are advised to apply the latest security updates provided by Microsoft to mitigate this risk.

Affected Version(s)

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8880

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7417

Windows 10 Version 22H2 32-bit Systems 10.0.19045.0 < 10.0.19045.7417

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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