CVE-2024-43639 Windows KDC Proxy Remote Code Execution Vulnerability
An attacker can execute arbitrary code on Windows Server via the KDC Proxy service due to an integer overflow vulnerability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-43639?
CVE-2024-43639 is a critical vulnerability in Microsoft Windows Server 2012, published on 12 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Windows KDC Proxy Remote Code Execution Vulnerability
Weakness: CWE-197
Which versions are affected by CVE-2024-43639?
It affects 6 products.
Products include Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2, Microsoft Windows Server 2025.
How do I fix CVE-2024-43639?
No fix has been published for CVE-2024-43639 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-43639 being exploited?
There is no known exploitation of CVE-2024-43639 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Server 2012
- CVE-2025-59287 Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data
- CVE-2026-69595 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-78445 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
- CVE-2026-41089 Windows Netlogon Remote Code Execution Vulnerability
- CVE-2023-24941 Windows Network File System Remote Code Execution Vulnerability
Sources
Also known as GHSA-2f2h-73pp-4p79.