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HIGH · 8.8

CVE-2025-62456

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code over a network.

Vulnerability Description

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code over a network.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftWindows 11 23H2< 10.0.22631.6345
MicrosoftWindows 11 24H2< 10.0.26100.7392
MicrosoftWindows 11 25H2< 10.0.26200.7392
MicrosoftWindows Server 2022< 10.0.20348.4467
MicrosoftWindows Server 2022 23H2< 10.0.25398.2025
MicrosoftWindows Server 2025< 10.0.26100.7392

Related Weaknesses (CWE)

CWE-122

References

FAQ

What is CVE-2025-62456?

CVE-2025-62456 is a vulnerability with a CVSS score of 8.8 (HIGH). Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code over a network.

How severe is CVE-2025-62456?

CVE-2025-62456 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-62456?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 23H2, Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23H2.