Remote code execution in Microsoft Windows Kerberos



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-43639
CWE-ID CWE-197
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Numeric Truncation Error

EUVDB-ID: #VU100409

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-43639

CWE-ID: CWE-197 - Numeric Truncation Error

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to numeric truncation error in Windows Kerberos. A remote attacker can use a specially crafted application and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: before 2012 R2 6.3.9600.22267, 2012 6.2.9200.25165, 2016 10.0.14393.7515, 2019 10.0.17763.6532, 2022 10.0.20348.2849, 2022 23H2 10.0.25398.1251, 2025 10.0.26100.2240, 2025 10.0.26100.2314

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43639


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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