Use After Free Vulnerability in Windows Shell by Microsoft
CVE-2025-27729

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 21h2
Windows 11 Version 22h2
Windows 10 Version 22h2
Windows Server 2025 (server Core Installation)
Vendor
CVE Published:
8 April 2025

What is CVE-2025-27729?

A use after free vulnerability in Windows Shell could allow an unauthorized attacker to execute arbitrary code on the affected system. This weakness arises from improper memory management, allowing potential exploitation by attackers to gain control over the affected environment. It's crucial for users and administrators to apply patches or mitigations provided by Microsoft to safeguard against potential threats.

Affected Version(s)

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.5737

Windows 10 Version 22H2 x64-based Systems 10.0.19045.0 < 10.0.19045.5737

Windows 11 version 22H2 ARM64-based Systems 10.0.22621.0 < 10.0.22621.5189

References

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

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.