dbcve.org
Windows 10 1809Operating system · Microsoft

CVE-2024-30034

MEDIUM · 5.5 CVSS v3.1 Published 2024-05-14
Fix available
A fix is available. Upgrade to 10.0.17763.5820 / 10.0.19044.4412 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
Windows Cloud Files Mini Filter Driver Information Disclosure Vulnerability

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

Vulnerability in Windows Cloud Files Mini Filter Driver allows information disclosure. The specific nature of the exposed information and exact exploitation mechanism are not detailed in available documentation. The CVSS 5.5 indicates a medium-severity flaw requiring low complexity exploitation with no authentication.

MitigationApply Microsoft security updates for CVE-2024-30034 through Windows Update or enterprise patch management systems. Verify the Cloud Files Mini Filter Driver version post-patch.

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 1809Operating system
Affected:< 10.0.17763.5820
Windows 10 21h2Operating system
Affected:< 10.0.19044.4412
Windows 10 22h2Operating system
Affected:< 10.0.19045.4412
Windows 11 21h2Operating system
Affected:< 10.0.22000.2960
Windows 11 22h2Operating system
Affected:< 10.0.22621.3593
Windows 11 23h2Operating system
Affected:< 10.0.22631.3593
Windows Server 2019Operating system
Affected:< 10.0.17763.5820
Windows Server 2022Operating system
Affected:< 10.0.20348.2461

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
    Run 'winver' or 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"' to determine the exact Windows build number
    Affected if The Windows build number is lower than any of these thresholds: 10.0.17763.5820 (Windows 10 1809/Server 2019), 10.0.19044.4412 (Windows 10 21h2), 10.0.19045.4412 (Windows 10 22h2), 10.0.22000.2960 (Windows 11 21h2), 10.0.22621.3593 (Windows 11 22h2), 10.0.22631.3593 (Windows 11 23h2), or 10.0.20348.
  2. Verify Cloud Files Mini Filter Driver is present
    Run 'fltmc.exe filters' or check the driver file exists at %SystemRoot%\System32\drivers\cldflt.sys
    Affected if The Cloud Files Mini Filter Driver (cldflt) is loaded or the driver file exists on the system
  3. Retrieve driver version
    Right-click cldflt.sys in %SystemRoot%\System32\drivers\, select Properties, then view the Details tab for the File Version, or run 'powershell (Get-Item "C:\Windows\System32\drivers\cldflt.sys").VersionInfo.FileVersion'
    Affected if The driver version number is lower than the corresponding threshold for your Windows version (for example, below 10.0.17763.5820 on Windows 10 1809 or Windows Server 2019)

You are affected if your Windows build falls within the listed version ranges AND the Cloud Files Mini Filter Driver is present with a version lower than the specified threshold.

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 10.0.17763.5820 / 10.0.19044.4412 / 10.0.19045.4412 or later
Fixed in 10.0.17763.582010.0.19044.441210.0.19045.4412
Interim mitigation

Apply Microsoft security updates for CVE-2024-30034 through Windows Update or enterprise patch management systems. Verify the Cloud Files Mini Filter Driver version post-patch.

Recommended fix High confidence

Windows 10 1809: build 10.0.17763.5820 | Windows 10 21h2: build 10.0.19044.4412 | Windows 10 22h2: build 10.0.19045.4412 | Windows 11 21h2: build 10.0.22000.2960 | Windows 11 22h2: build 10.0.22621.3593 | Windows 11 23h2: build 10.0.22631.3593 | Windows Server 2019: build 10.0.17763.5820 | Windows S

  1. Identify the current Windows version and build number by running 'winver' or 'systeminfo'
  2. Open Windows Update by navigating to Settings > Update & Security > Windows Update
  3. Click 'Check for updates' to receive the latest Microsoft security patch for CVE-2024-30034
  4. Alternatively, navigate to Microsoft Update Catalog (https://www.catalog.update.microsoft.com) and search for CVE-2024-30034 or the specific KB article associated with this vulnerability
  5. Download and install the appropriate security update for your Windows version
  6. Restart the system when prompted to complete the installation
  7. Verify the update was installed successfully by checking the installed updates in Control Panel > Programs and Features > View installed updates
Caveat Standard Microsoft security patch with minimal risk; test in staging environment before broad deployment in enterprise environments

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

Fix this in Windows 10 1809 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
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2024-30034 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