Use After Free Vulnerability in Windows Projected File System by Microsoft
CVE-2026-32078

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Windows 11 Version 22h3
Vendor
CVE Published:
14 April 2026

What is CVE-2026-32078?

A use after free vulnerability in the Windows Projected File System enables an attacker with authorized access to escalate their privileges locally. This could potentially allow for unauthorized actions within the system. Mitigations should be promptly applied to protect system integrity.

Affected Version(s)

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.8644

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7184

Windows 10 Version 22H2 32-bit Systems 10.0.19045.0 < 10.0.19045.7184

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

.