Heap-based buffer overflow in Microsoft Windows Server Setup and Boot Event Collection

1) Heap-based buffer overflow

EUVDB-ID: #VU112545

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49666

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Windows Server Setup and Boot Event Collection. A remote administrator can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2016 10.0.14393.10 - 2025 10.0.26100.4349

CPE2.3

• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.51:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.82:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.105:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.187:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.222:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.321:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.351:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.447:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.479:*:*:*:*:*:*

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49666

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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