Vulnerability · CVE-2024-43573
Microsoft Windows MSHTML Platform Spoofing Vulnerability
Published Oct 8, 2024 · catalog updated Jun 17, 2026 · Microsoft Windows
Patch now
CVE-2024-43573 is in the CISA known-exploited catalog, due Oct 29, 2024. Confirm Microsoft Windows against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- Severity
- High8.1
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 46.11%
- Remediation
- Remediation guidance
- Affected products
- cpe microsoft/windows 10 1507 · cpe microsoft/windows 10 1607 · cpe microsoft/windows 10 1809 · cpe microsoft/windows 10 21h2 · vendor Microsoft Windows
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe microsoft/windows 10 1507version unspecified
- cpe microsoft/windows 10 1607version unspecified
- cpe microsoft/windows 10 1809version unspecified
- cpe microsoft/windows 10 21h2version unspecified
- vendor Microsoft Windowsversion unspecified
How to fix CVE-2024-43573
Recommended remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA due date Oct 29, 2024.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2024-43573 is in the CISA known-exploited catalog, due Oct 29, 2024. Confirm Microsoft Windows against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Affected version ranges are not on this record. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
What should an analyst verify?
CWE-79: Cross-site Scripting (XSS). EPSS 46.11%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Technology hubs
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 8, 2024 · Catalog
Detected
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
Oct 8, 2024 · CISA KEV
Known exploited
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Oct 29, 2024 · CISA KEV
Remediation due
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Jun 17, 2026 · Catalog
Updated
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
Sources
- CISA KEVConfirmed exploitationCVE-2024-43573
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
cisa.gov - CVE.orgVulnerability recordCVE-2024-43573
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2024-43573
30-day exploitation probability 46.1%
first.org - NIST NVDVulnerability recordCVE-2024-43573
Windows MSHTML Platform Spoofing Vulnerability
nvd.nist.gov - VulnCheck KEVConfirmed exploitationCVE-2024-43573
Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
vulncheck.com
References
Freshness
Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.