Actively exploited in the wild. This CVE is on the CISA Known Exploited Vulnerabilities list — treat remediation as urgent. Federal remediation due by 29 Oct 2024.
Windows 10 1507Operating system · Microsoft

CVE-2024-43573

HIGH · 8.1 CVSS v3.1 Developing Published 2024-10-08
Fix available
A fix is available. Upgrade to 10.0.10240.20796 / 10.0.14393.7428 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 MSHTML Platform Spoofing 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 · low confidence
Developing — this CVE was published recently and its authoritative NVD entry is still being established, so we're holding a technical summary until the source data settles rather than publish something unreliable. Re-checking after 2026-08-23.

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:< 10.0.10240.20796
Windows 10 1607Operating system
Affected:< 10.0.14393.7428
Windows 10 1809Operating system
Affected:< 10.0.17763.6414
Windows 10 21h2Operating system
Affected:< 10.0.19044.5011
Windows 10 22h2Operating system
Affected:< 10.0.19045.5011
Windows 11 21h2Operating system
Affected:< 10.0.22000.3260
Windows 11 22h2Operating system
Affected:< 10.0.22621.4317
Windows 11 23h2Operating system
Affected:< 10.0.22631.4317

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
High
Integrity
High
Availability
None

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

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 10.0.10240.20796 / 10.0.14393.7428 / 10.0.17763.6414 or later
Fixed in 10.0.10240.2079610.0.14393.742810.0.17763.6414
Vendor patch msrc.microsoft.com →
Recommended fix High confidence

Apply the November 2024 or later Windows security update (KB prefix varies by Windows version)

  1. Open Windows Settings on the affected system
  2. Navigate to Windows Update (Update & Security > Windows Update)
  3. Click 'Check for updates' to fetch the latest patches
  4. Install all available security updates, particularly any update containing a fix for CVE-2024-43573
  5. Restart the system if prompted to complete the installation
  6. Verify the installed KB number matches the security update that addresses CVE-2024-43573 by viewing update history
Caveat Standard Windows update - no expected breaking changes for this security patch

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

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,250. Get it fixed fast

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-43573 — 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-2024-43573 in production — separate from our analysis above.

No notes yet

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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