Multiple vulnerabilities in Microsoft Windows COM Server

Published: 2025-01-14 | Updated: 2025-03-10

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2025-21288 CVE-2025-21272
CWE-ID	CWE-908
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use of uninitialized resource

EUVDB-ID: #VU102711

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21288

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a local user to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in Windows COM Server. A local user can pass specially crafted data to the application, trigger uninitialized usage of resources and gain access to sensitive information on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.2894

Windows Server: 2008 R2 6.1.7601.27117 - 2025 10.0.26100.2605

CPE2.3

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21288

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Use of uninitialized resource

EUVDB-ID: #VU102713