Actively exploited · Published Oct 8, 2024 · Assigned by microsoft

CVE-2024-43573Windows MSHTML Platform Spoofing Vulnerability

Medium 6.5 Exploited

In plain English

A medium-severity cross-site scripting in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on October 8, 2024). The chance it is exploited in the next 30 days is estimated at 46.1% (higher than 99% of all known vulnerabilities). Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)46.1%top 1.2% of all CVEs
Exploited in the wildYesCISA KEV since Oct 8, 2024
Attack toolingNoneno public tooling known

CISA guidance

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

Federal agencies must remediate by Oct 29, 2024.

Official description

Windows MSHTML Platform Spoofing Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.20796
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.7428
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.6414
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.5011
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.5011
Microsoft Windows 11 version 21H2 10.0.22000.0 – before 10.0.22000.3260
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.4317
Microsoft Windows 11 version 22H3 10.0.22631.0 – before 10.0.22631.4317
Microsoft Windows 11 Version 23H2 10.0.22631.0 – before 10.0.22631.4317
Microsoft Windows 11 Version 24H2 10.0.26100.0 – before 10.0.26100.2033
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.22221
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.22221
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.7428
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.7428
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.6414
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.6414
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.2762
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – before 10.0.25398.1189

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C

References