How severe is CVE-2024-30040?

CVE-2024-30040 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-30040 being actively exploited?

Yes. CVE-2024-30040 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-05-14, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2024-30040?

CVE-2024-30040 primarily affects Microsoft Windows 10 1507. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-30040?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2024-30040 have an EU (EUVD) identifier?

Yes. CVE-2024-30040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-27980. It is also flagged as exploited in the EUVD (since 2024-05-14).

When was CVE-2024-30040 published?

CVE-2024-30040 was published on 2024-05-14 and last updated on 2026-06-17.

CVE-2024-30040

CVE-2024-30040 is a high-severity vulnerability in Microsoft Windows 10 1507 with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2024-05-14). The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2024-05-14)
EU (EUVD) id: EUVD-2024-27980
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2024-05-14)
Weakness: CWE-20
Affected product: Microsoft Windows 10 1507
Published: 2024-05-14
Last modified: 2026-06-17

Description

Windows MSHTML Platform Security Feature Bypass Vulnerability

Frequently asked questions

What is CVE-2024-30040?: Windows MSHTML Platform Security Feature Bypass Vulnerability
How severe is CVE-2024-30040?: CVE-2024-30040 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-30040 being actively exploited?: Yes. CVE-2024-30040 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-05-14, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2024-30040?: CVE-2024-30040 primarily affects Microsoft Windows 10 1507. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-30040?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2024-30040 have an EU (EUVD) identifier?: Yes. CVE-2024-30040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-27980. It is also flagged as exploited in the EUVD (since 2024-05-14).
When was CVE-2024-30040 published?: CVE-2024-30040 was published on 2024-05-14 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*

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