Out-of-Bounds Read Vulnerability in Windows Kernel by Microsoft
CVE-2026-122183

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
10 November 2026

What is CVE-2026-122183?

The vulnerability in the Windows Kernel can be exploited by an authorized attacker to perform an out-of-bounds read, potentially leading to unauthorized local privilege escalation. This flaw may allow attackers to access sensitive system memory or execute arbitrary code with elevated privileges. Mitigating this vulnerability is essential for ensuring system security and integrity.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9688

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9487

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7846

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

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