Is CVE-2024-43573 in the CISA KEV catalog?

Yes. CVE-2024-43573 is on the CISA Known Exploited Vulnerabilities list, added 2024-10-08.

What is the CVSS severity of CVE-2024-43573?

CVE-2024-43573 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2024-43573?

CVE-2024-43573 has an EPSS score of 44.38% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2024-43573

MEDIUMCISA KEVEPSS 99th pctl

6.5

CVSS v3

NVD

Description

Windows MSHTML Platform Spoofing Vulnerability

CWE-79Cross-Site Scripting (XSS)

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

44.38%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Microsoft Windows MSHTML Platform Spoofing Vulnerability

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

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

Remediation due: 2024-10-29

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-30.