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Vulnerability Intelligence

CVE-2024-43573

HighExploitedPublic exploit

Windows MSHTML Platform Spoofing Vulnerability

Published Oct 8, 2024 · Updated Aug 19, 2026

Key Facts

Patch immediately
  • CVE-2024-43573 is a high-severity vulnerability (CVSS 8.1 v3.1) affecting Windows 10 1507 (Microsoft), Windows 10 1607 (Microsoft), Windows 10 1809 (Microsoft) and 22 more products.
  • It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 8, 2024. Public exploit code is available.
  • EPSS estimates a 46% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Windows 10 1507 10.0.10240.20796, Windows 10 1607 10.0.14393.7428, Windows 10 1809 10.0.17763.6414.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.1

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

EPSS (30-day exploit likelihood)

46%

Higher than 98.7% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2024-43573 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Windows MSHTML Platform Spoofing Vulnerability

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVOct 8, 2024Oct 29, 2024Not reported
Industry KEV feedOct 8, 2024Oct 29, 2024Not reported
CIRCL KEVOct 8, 2024Oct 29, 2024Not reported
ENISA EUVDOct 8, 2024n/aNot reported

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

Affected Products

49 affected entries in total
ProductAffected versionsFixed in
Windows 10 1507MicrosoftSee advisory10.0.10240.20796
Windows 10 1607MicrosoftSee advisory10.0.14393.7428
Windows 10 1809MicrosoftSee advisory10.0.17763.6414
windows 10 21H2MicrosoftSee advisory10.0.19044.5011
windows 10 22H2MicrosoftSee advisory10.0.19045.5011
20 more affected products in the full CVE brief

Patched Releases

Windows 10 1507

10.0.10240.20796

Windows 10 1607

10.0.14393.7428

Windows 10 1809

10.0.17763.6414

windows 10 21H2

10.0.19044.5011

windows 10 22H2

10.0.19045.5011

windows 11 21H2

10.0.22000.3260

windows 11 22H2

10.0.22621.4317

windows 11 23H2

10.0.22631.4317

windows 11 24H2

10.0.26100.2033

windows server 2012 R2

6.3.9600.22221

Windows Server 2016

10.0.14393.7428

Windows Server 2019

10.0.17763.6414

Windows Server 2022

10.0.20348.2762

Windows Server 2022 23h2

10.0.25398.1189

Windows Server 23h2

10.0.25398.1189

Windows 10 Version 1507

10.0.10240.20796

Windows 10 Version 1607

10.0.14393.7428

Windows 10 Version 1809

10.0.17763.6414

Windows 10 Version 21H2

10.0.19044.5011

Windows 10 Version 22H2

10.0.19045.5011

Windows 11 version 21H2

10.0.22000.3260

Windows 11 version 22H2

10.0.22621.4317

Windows 11 version 22H3

10.0.22631.4317

Windows 11 Version 23H2

10.0.22631.4317

Windows 11 Version 24H2

10.0.26100.2033

Timeline

  1. Publicly disclosed

    Oct 8, 2024

  2. Added to CISA KEV

    Oct 8, 2024

  3. Added to Industry KEV feed

    Oct 8, 2024

  4. Added to CIRCL KEV

    Oct 8, 2024

  5. Added to ENISA EUVD

    Oct 8, 2024

  6. Last updated

    Aug 19, 2026

Weakness Type

  • CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

FAQ

Common Questions.

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