CVE-2024-43573

Name: CVE-2024-43573
Creator: NVD / NIST
Published: 2024-10-08T18:15:24.817+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10Actively ExploitedEPSS 44.38%

Last modified Jun 17, 2026

CVE-2024-43573 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Windows MSHTML Platform Spoofing Vulnerability. CISA has confirmed active exploitation in the wild. EPSS estimates a 44.38% chance of exploitation in the next 30 days.

Description

Windows MSHTML Platform Spoofing Vulnerability

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

44.38%

98.6th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Oct 29, 2024.

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10 1507	< 10.0.10240.20796
Microsoft	Windows 10 1607	< 10.0.14393.7428
Microsoft	Windows 10 1809	< 10.0.17763.6414
Microsoft	Windows 10 21h2	< 10.0.19044.5011
Microsoft	Windows 10 22h2	< 10.0.19045.5011
Microsoft	Windows 11 21h2	< 10.0.22000.3260
Microsoft	Windows 11 22h2	< 10.0.22621.4317
Microsoft	Windows 11 23h2	< 10.0.22631.4317
Microsoft	Windows 11 24h2	< 10.0.26100.2033
Microsoft	Windows Server 2012	r2
Microsoft	Windows Server 2016	< 10.0.14393.7428
Microsoft	Windows Server 2019	< 10.0.17763.6414
Microsoft	Windows Server 2022	< 10.0.20348.2762
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1189

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43573Patch, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-43573US Government Resource

Timeline

Published: Oct 8, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-43573?

Windows MSHTML Platform Spoofing Vulnerability

How severe is CVE-2024-43573?

CVE-2024-43573 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 44.38% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2024-43573?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-43573?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST