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CVE-2025-21288: Windows COM Server Information Disclosure Vulnerability

**According to the CVSS metric, successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?** In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could elevate their privileges and execute code or access resources at a higher integrity level than that of the AppContainer execution environment.

Microsoft Security Response Center
#vulnerability#windows#Windows COM#Security Vulnerability
CVE-2025-21281: Microsoft COM for Windows Elevation of Privilege Vulnerability

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

CVE-2025-21272: Windows COM Server Information Disclosure Vulnerability

**According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?** In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could get unauthorized access to sensitive user data outside of the AppContainer execution environment.

CVE-2021-42275: Microsoft COM for Windows Remote Code Execution Vulnerability

*How could an attacker exploit this vulnerability?* An authorized attacker could exploit this Windows COM vulnerability by sending from a user mode application specially crafted malicious COM traffic directed at the COM Server, which might lead to remote code execution.