CASCACascade Atlas

Evidence dossier

CVE-2024-43573

Windows MSHTML Platform Spoofing Vulnerability

69.5–88.5Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Windows MSHTML Platform Spoofing Vulnerability

State
PUBLISHED
Published
Oct 8, 2024
Updated
Jun 9, 2026
Evidence coverage
72%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS43.68%

2026-07-18 · v2026.06.15 · percentile 98.6%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

microsoftoriginal assertion
container

Windows MSHTML Platform Spoofing Vulnerability

CISA KEVoriginal assertion
observed_exploitation

Microsoft Windows MSHTML Platform Spoofing Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.436790000000; percentile 0.986010000000

Applicability

Cited product scope

Trace impact →
MicrosoftWindows 10 Version 1507
[{"status": "affected", "version": "10.0.10240.0", "lessThan": "10.0.10240.20796", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1607
[{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7428", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1809
[{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.6414", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 21H2
[{"status": "affected", "version": "10.0.19043.0", "lessThan": "10.0.19044.5011", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 22H2
[{"status": "affected", "version": "10.0.19045.0", "lessThan": "10.0.19045.5011", "versionType": "custom"}]unknown
MicrosoftWindows 11 version 21H2
[{"status": "affected", "version": "10.0.22000.0", "lessThan": "10.0.22000.3260", "versionType": "custom"}]unknown
MicrosoftWindows 11 version 22H2
[{"status": "affected", "version": "10.0.22621.0", "lessThan": "10.0.22621.4317", "versionType": "custom"}]unknown
MicrosoftWindows 11 version 22H3
[{"status": "affected", "version": "10.0.22631.0", "lessThan": "10.0.22631.4317", "versionType": "custom"}]unknown
MicrosoftWindows 11 Version 23H2
[{"status": "affected", "version": "10.0.22631.0", "lessThan": "10.0.22631.4317", "versionType": "custom"}]unknown
MicrosoftWindows 11 Version 24H2
[{"status": "affected", "version": "10.0.26100.0", "lessThan": "10.0.26100.2033", "versionType": "custom"}]unknown
MicrosoftWindows Server 2012 R2
[{"status": "affected", "version": "6.3.9600.0", "lessThan": "6.3.9600.22221", "versionType": "custom"}]unknown
MicrosoftWindows Server 2012 R2 (Server Core installation)
[{"status": "affected", "version": "6.3.9600.0", "lessThan": "6.3.9600.22221", "versionType": "custom"}]unknown
MicrosoftWindows Server 2016
[{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7428", "versionType": "custom"}]unknown
MicrosoftWindows Server 2016 (Server Core installation)
[{"status": "affected", "version": "10.0.14393.0", "lessThan": "10.0.14393.7428", "versionType": "custom"}]unknown
MicrosoftWindows Server 2019
[{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.6414", "versionType": "custom"}]unknown
MicrosoftWindows Server 2019 (Server Core installation)
[{"status": "affected", "version": "10.0.17763.0", "lessThan": "10.0.17763.6414", "versionType": "custom"}]unknown
MicrosoftWindows Server 2022
[{"status": "affected", "version": "10.0.20348.0", "lessThan": "10.0.20348.2762", "versionType": "custom"}]unknown
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)
[{"status": "affected", "version": "10.0.25398.0", "lessThan": "10.0.25398.1189", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*; end excluding 10.0.10240.20796supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*; end excluding 10.0.10240.20796supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*; end excluding 10.0.14393.7428supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*; end excluding 10.0.14393.7428supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*; end excluding 10.0.17763.6414supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*; end excluding 10.0.19044.5011supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*; end excluding 10.0.19044.5011supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*; end excluding 10.0.19044.5011supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*; end excluding 10.0.19045.5011supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*; end excluding 10.0.19045.5011supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*; end excluding 10.0.19045.5011supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*; end excluding 10.0.22000.3260supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*; end excluding 10.0.22621.4317supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*; end excluding 10.0.22631.4317supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*; end excluding 10.0.22631.4317supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*; end excluding 10.0.26100.2033supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*; end excluding 10.0.14393.7428supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*; end excluding 10.0.17763.6414supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*; end excluding 10.0.20348.2762supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*; end excluding 10.0.25398.1189supported

Assessments

CVSS by origin

8.1
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
6.5
secure@microsoft.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.5
microsoftCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.