Is CVE-2024-43639 in the CISA KEV catalog?

No. CVE-2024-43639 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-43639?

CVE-2024-43639 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-43639?

CVE-2024-43639 has an EPSS score of 8.75% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-43639?

Install KB5046697 for Windows Server 2012. Fixes are available for 13 affected products.

CVE & CISA-KEV Catalog

CVE-2024-43639

CRITICALEPSS 95th pctl

9.8

CVSS v3

NVD

Description

Windows KDC Proxy Remote Code Execution Vulnerability

CWE-197

How to fix

Remediation Available

Windows Server 2012Windows

Install:KB5046697Microsoft

Windows Server 2012 (Server Core installation)Windows

Install:KB5046697Microsoft

Windows Server 2012 R2Windows

Install:KB5046682Microsoft

Windows Server 2012 R2 (Server Core installation)Windows

Install:KB5046682Microsoft

Windows Server 2016Windows

Install:KB5046612Microsoft

Windows Server 2016 (Server Core installation)Windows

Install:KB5046612Microsoft

Windows Server 2019Windows

Install:KB5046615Microsoft

Windows Server 2019 (Server Core installation)Windows

Install:KB5046615Microsoft

Windows Server 2022Windows

Install:KB5046616Microsoft

Install:KB5046698Microsoft

Windows Server 2022 (Server Core installation)Windows

Install:KB5046616Microsoft

Install:KB5046698Microsoft

Windows Server 2022, 23H2 Edition (Server Core installation)Windows

Install:KB5046618Microsoft

Windows Server 2025Windows

Install:KB5046617Microsoft

Install:KB5046696Microsoft

Windows Server 2025 (Server Core installation)Windows

Install:KB5046617Microsoft

Install:KB5046696Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

8.75%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Patch1

msrc.microsoft.com

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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 2024-11-18.