CVE-2024-20674

CVE-2024-20674 is a high-severity vulnerability in Microsoft Windows 10 1507 with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-290.

Key facts

• Severity: High (CVSS 3.x base score 8.8)
• EPSS exploit prediction: 17% (97th percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2024-18389
• Weakness: CWE-290
• Affected product: Microsoft Windows 10 1507
• Published: 2024-01-09
• Last modified: 2026-06-17

Description

Windows Kerberos Security Feature Bypass Vulnerability

Frequently asked questions

What is CVE-2024-20674?

Windows Kerberos Security Feature Bypass Vulnerability

How severe is CVE-2024-20674?

CVE-2024-20674 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-2024-20674 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-20674?

CVE-2024-20674 primarily affects Microsoft Windows 10 1507. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-20674?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-20674 have an EU (EUVD) identifier?

Yes. CVE-2024-20674 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-18389.

When was CVE-2024-20674 published?

CVE-2024-20674 was published on 2024-01-09 and last updated on 2026-06-17.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-20674

Affected products (26)

• cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*
• 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:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

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