Elevation of Privilege Vulnerability in Windows DWM Core Library by Microsoft
CVE-2026-25189

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Windows Server 2019
Vendor
CVE Published:
10 March 2026

What is CVE-2026-25189?

A use after free vulnerability in the Windows DWM Core Library permits an authorized attacker to gain elevated privileges locally. By exploiting this flaw, attackers can manipulate the memory handling mechanisms used by the library, potentially executing arbitrary code with higher access levels. It is crucial for users and administrators to apply the security updates provided by Microsoft to mitigate the risks associated with this vulnerability.

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Affected Version(s)

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8511

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7058

Windows 10 Version 22H2 32-bit Systems 10.0.19045.0 < 10.0.19045.7058

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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