Elevated Privileges Vulnerability in Windows Kernel by Microsoft
CVE-2026-65773

7.8HIGH

Key Information:

Vendor

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

What is CVE-2026-65773?

An improper access control vulnerability exists within the Windows Kernel that could allow an attacker with local access to elevate their privileges on affected systems. This flaw could potentially allow unauthorized actions to be executed, thereby compromising the integrity of the system. Users are encouraged to review the security updates and apply the necessary patches to protect against this vulnerability.

Affected Version(s)

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9115

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7663

Windows 10 Version 22H2 32-bit Systems 10.0.19045.0 < 10.0.19045.7663

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.