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

CVE-2025-62456

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

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

HIGH · CVSS 8.8 EPSS 0.00089
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
▤

Affected Products & Versions

6
microsoft windows 11 23h2< 10.0.22631.6345
microsoft windows 11 24h2< 10.0.26100.7392
microsoft windows 11 25h2< 10.0.26200.7392
microsoft windows server 2022< 10.0.20348.4467
microsoft windows server 2022 23h2< 10.0.25398.2025
microsoft windows server 2025< 10.0.26100.7392
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Dec 2025 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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Vendor Advisories

1
msrcCVE-2025-62456Remote Code Execution
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