dbcve.org
Windows 10 1507Operating system · Microsoft

CVE-2025-55325

MEDIUM · 5.5 CVSS v3.1 Published 2025-10-14
Fix available
A fix is available. Upgrade to 10.0.10240.21161 / 10.0.14393.8519 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Buffer over-read in Windows Storage Management Provider allows an authorized attacker to disclose information locally.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A buffer over-read vulnerability exists in the Windows Storage Management Provider that allows an authorized local attacker to read sensitive information from memory beyond the intended buffer boundaries. This is a memory safety flaw that enables information disclosure without requiring code execution or privilege escalation beyond the attacker's existing authorized access.

MitigationApply the Microsoft security update for CVE-2025-55325 when released. Until then, restrict local access to trusted, authorized users only and monitor for suspicious access patterns to the Windows Storage Management Provider.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Windows 10 1507Operating system
Affected:< 10.0.10240.21161
Windows 10 1607Operating system
Affected:< 10.0.14393.8519
Windows 10 1809Operating system
Affected:< 10.0.17763.7919
Windows 10 21h2Operating system
Affected:< 10.0.19044.6456
Windows 10 22h2Operating system
Affected:< 10.0.19045.6456
Windows 11 22h2Operating system
Affected:< 10.0.22621.6060
Windows 11 23h2Operating system
Affected:< 10.0.22631.6060
Windows 11 24h2Operating system
Affected:< 10.0.26100.6899

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Windows version and build number
    Run 'winver' or execute 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' in Command Prompt to obtain the exact Windows version and build number.
    Affected if The detected version and build number fall below any of the following thresholds: 10.0.10240.21161 (1507), 10.0.14393.8519 (1607), 10.0.17763.7919 (1809), 10.0.19044.6456 (21h2), 10.0.19045.6456 (22h2), 10.0.22621.6060 (11 22h2), 10.0.22631.6060 (11 23h2), or 10.0.26100.6899 (11 24h2).
  2. Verify Windows Storage Management Provider component is present
    Check for the presence of the Storage Management Provider service by running 'Get-Service -Name *Storage*' or 'Get-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Services\StorSvc' -ErrorAction SilentlyContinue' in PowerShell.
    Affected if The Windows Storage Management Provider (StorSvc) service or component is installed on the system.
  3. Confirm the vulnerable component version
    Query the file version of storvsc.sys or storSvc.dll in the System32 directory using 'Get-Item C:\Windows\System32\storSvc.dll | Format-List VersionInfo' or similar file version inspection.
    Affected if The component version cannot be determined or is lower than the version containing the security fix.

A system is affected if it runs any of the specified Windows versions with a build number below the thresholds listed AND has the Windows Storage Management Provider component present.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 10.0.10240.21161 / 10.0.14393.8519 / 10.0.17763.7919 or later
Fixed in 10.0.10240.2116110.0.14393.851910.0.17763.7919
Interim mitigation

Apply the Microsoft security update for CVE-2025-55325 when released. Until then, restrict local access to trusted, authorized users only and monitor for suspicious access patterns to the Windows Storage Management Provider.

Recommended fix High confidence

Windows 10 1507: 10.0.10240.21161 | Windows 10 1607: 10.0.14393.8519 | Windows 10 1809: 10.0.17763.7919 | Windows 10 21h2: 10.0.19044.6456 | Windows 10 22h2: 10.0.19045.6456 | Windows 11 22h2: 10.0.22621.6060 | Windows 11 23h2: 10.0.22631.6060 | Windows 11 24h2: 10.0.26100.6899

  1. Identify the current Windows version by running 'winver' or checking System Information
  2. Determine which Windows 10 or 11 version and build is currently installed
  3. Apply the appropriate Microsoft security update for this vulnerability (KB reference available at msrc.microsoft.com)
  4. Restart the system after applying the update
  5. Verify the installed version meets or exceeds the minimum fixed build version for your Windows release
Caveat Standard Windows update - review release notes for any known issues specific to your environment before deploying

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Windows 10 1507 Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-55325 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data