Elevation of Privilege in Windows Management Instrumentation by Microsoft
CVE-2026-69451

7.1HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-69451?

A vulnerability exists in Windows Management Instrumentation that allows an attacker to exploit a use-after-free condition. This security flaw enables authorized users to elevate their privileges over a network, potentially leading to unauthorized access and control over affected systems. Microsoft has released an advisory detailing the vulnerability and recommending patch updates to mitigate the risk.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9512

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9245

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7725

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-69451-PoC
Created by fj016

References

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

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.