Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 3 Sep 2024.
Windows 10 1507Operating system · Microsoft

CVE-2024-38213

MEDIUM · 6.5 CVSS v3.1 Published 2024-08-13
Fix available
A fix is available. Upgrade to 10.0.10240.20680 / 10.0.14393.7070 or later.
See remediation →
100/100
Remediation priority · Urgent
In the wild Remotely reachable No privileges Patch available

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 Mark of the Web Security Feature Bypass 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

This is a security feature bypass vulnerability in Windows Mark of the Web (MOTW), a protective mechanism that applies Zone.Identifier metadata to files downloaded from the internet or originating from untrusted sources. The bypass allows attackers to circumvent this protection, potentially enabling malicious files to execute without the expected security restrictions or user warnings that MOTW typically enforces.

MitigationApply the Microsoft security updates for CVE-2024-38213 once released, as this addresses a bypass of a core Windows security feature designed to protect users from untrusted files.

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:< 10.0.10240.20680
Windows 10 1607Operating system
Affected:< 10.0.14393.7070
Windows 10 1809Operating system
Affected:< 10.0.17763.5936
Windows 10 21h2Operating system
Affected:< 10.0.19044.4529
Windows 10 22h2Operating system
Affected:< 10.0.19045.4529
Windows 11 21h2Operating system
Affected:< 10.0.22000.3019
Windows 11 22h2Operating system
Affected:< 10.0.22621.3737
Windows 11 23h2Operating system
Affected:< 10.0.22631.3737

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
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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. Check your Windows build version
    Run `winver` or `systeminfo | findstr /B /C:"OS Version"` and note the build number
    Affected if The build number is below 10240.20680 (Win10 1507), 14393.7070 (Win10 1607), 17763.5936 (Win10 1809), 19044.4529 (Win10 21h2), 19045.4529 (Win10 22h2), 22000.3019 (Win11 21h2), 22621.3737 (Win11 22h2), or 22631.3737 (Win11 23h2)
  2. Verify the full Windows version name
    Run `winver` and confirm the exact release (such as Windows 10 22h2 or Windows 11 23h2)
    Affected if The release matches an affected version but the build is below the corresponding threshold in step 1
  3. Test if MotW is being applied to downloaded files
    Download a file from the internet, then right-click the file, select Properties, and look for a Security notice under General indicating the file was downloaded from the internet
    Affected if The Security notice is missing or the Zone.Identifier alternate data stream (viewable via `dir /r` or `Get-Item -Stream Zone.Identifier`) is not present on files downloaded from untrusted sources
  4. Check NTFS file system usage
    Run `fsutil fsinfo volumeinfo C:` and confirm NTFS is the file system
    Affected if The volume is not formatted as NTFS, as MotW protection relies on NTFS alternate data streams

You are affected if you are running any Windows 10 or Windows 11 version listed as vulnerable and the Mark of the Web feature is not properly tagging or warning about files from untrusted sources.

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 10.0.10240.20680 / 10.0.14393.7070 / 10.0.17763.5936 or later
Fixed in 10.0.10240.2068010.0.14393.707010.0.17763.5936
Vendor patch msrc.microsoft.com →
Interim mitigation

Apply the Microsoft security updates for CVE-2024-38213 once released, as this addresses a bypass of a core Windows security feature designed to protect users from untrusted files.

Recommended fix High confidence

June 2024 Security Updates (KB5039212 for Windows 10, KB5039219 for Windows 11) or later - specific to your Windows version and build

  1. Identify the current Windows version and build by running 'winver' or 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"'
  2. Determine if the current build is below the fixed version for your Windows release
  3. Open Settings > Update & Security > Windows Update and check for updates
  4. Install the June 2024 Security Updates (or later) from Microsoft Update
  5. Alternatively, download and install the specific cumulative update for your Windows version from the Microsoft Update Catalog
  6. Restart the system after installing the update
  7. Verify the installed build matches or exceeds the fixed version by running 'winver'
Caveat Standard Windows update process; minimal risk; may require restart

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

Fix this in Windows 10 1507 Exploited in the wild — priority engagement
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,390
Get it fixed fast

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-38213 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2024-38213 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