CVE-2025-59206 — Use After Free in Microsoft Windows 11 Version 24h2

CWE-416 — Use After Free7 documents6 sources
Severity
7.4HIGHNVD
EPSS
0.0%
top 88.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Microsoft Windows 11 Version 24h2Microsoft Windows 11 Version 25h2Microsoft Windows Server 2025+2 more
Timeline
PublishedOct 14

Description

Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 1.4 | Impact: 5.9

Affected Packages6 packages

▶NVDmicrosoft/windows_11_24h2< 10.0.26100.6899
▶NVDmicrosoft/windows_11_25h2< 10.0.26200.6899
▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.6899
▶CVEListV5microsoft/windows_11_version_24h210.0.26100.0 — 10.0.26100.6899
▶CVEListV5microsoft/windows_11_version_25h210.0.26200.0 — 10.0.26200.6899

🔴Vulnerability Details

2
CVEList
Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability↗2025-10-14
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GHSA
GHSA-v786-hjfg-r469: Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability↗2025-10-14
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📋Vendor Advisories

1
Microsoft
Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability↗2025-10-14
▶

🕵️Threat Intelligence

3
Qualys
Microsoft and Adobe Patch Tuesday, October 2025 Security Update Review | Qualys↗2025-10-14
▶
Qualys
Microsoft and Adobe Patch Tuesday, October 2025 Security Update Review↗2025-10-14
▶
Bleepingcomputer
Microsoft October 2025 Patch Tuesday fixes 6 zero-days, 172 flaws↗2025-10-14
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CVE-2025-59206 — Use After Free in Microsoft | cvebase