Null Pointer Dereference Vulnerability in Windows NTFS by Microsoft
CVE-2025-49678

7HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
8 July 2025

What is CVE-2025-49678?

A vulnerability in Windows NTFS allows an authorized attacker to exploit a null pointer dereference, potentially leading to unauthorized elevation of privileges on the affected system. This flaw poses a risk as it can empower attackers to gain elevated access that bypasses normal security restrictions, making it crucial for users and administrators to implement necessary security patches and guidelines.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21073

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8246

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7558

References

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

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-49678 : Null Pointer Dereference Vulnerability in Windows NTFS by Microsoft