Is It On KEV?

Microsoft Windows

YES - ON THE CISA KEV LIST
CVE-2024-43573

Microsoft Windows MSHTML Platform Spoofing Vulnerability

CISA catalog due date2024-10-29
overdue since 2024-10-29
EPSS exploit probability (next 30 days)46.1% · 99percentile
From CVE publication to KEV listing0 days (2024-10-08 → 2024-10-08)
Remediation window (KEV listing to due date)21 days
Days on the KEV list764 days
Date added to KEV2024-10-08
Known ransomware campaign useUnknown
VendorMicrosoft
ProductWindows
Weaknesses (CWE)CWE-79

Microsoft: 391 entries (22.0% of all KEV entries are from this vendor); 41 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.

Required action (CISA)

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

Notes

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43573 ; https://nvd.nist.gov/vuln/detail/CVE-2024-43573

References

Other KEV entries for this vendor: Microsoft

Microsoft - Vendors with KEV entries

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