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CVE-2025-21418: Windows Ancillary Function Driver for WinSock 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.

Microsoft Security Response Center
#vulnerability#windows#Windows Ancillary Function Driver for WinSock#Security Vulnerability
CVE-2025-21391: Windows Storage Elevation of Privilege Vulnerability

**What privileges could be gained by an attacker who successfully exploited the vulnerability?** An attacker would only be able to delete targeted files on a system.

CVE-2025-21376: Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

CVE-2025-21375: Kernel Streaming WOW Thunk Service Driver 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-2025-21369: Microsoft Digest Authentication Remote Code Execution Vulnerability

**How could an attacker exploit this vulnerability?** To successfully exploit this remote code execution vulnerability, an attacker could send a malicious logon request to the target domain controller.

CVE-2025-21383: Microsoft Excel Information Disclosure Vulnerability

**What type of information could be disclosed by this vulnerability?** An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

CVE-2025-21379: DHCP Client Service Remote Code Execution Vulnerability

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** The attacker must inject themselves into the logical network path between the target and the resource requested by the victim to read or modify network communications. This is called a machine-in-the-middle (MITM) attack.

CVE-2025-21368: Microsoft Digest Authentication Remote Code Execution Vulnerability

**How could an attacker exploit this vulnerability?** To successfully exploit this remote code execution vulnerability, an attacker could send a malicious logon request to the target domain controller.

CVE-2025-21352: Internet Connection Sharing (ICS) Denial of Service Vulnerability

**According to the CVSS metric, successful exploitation of this vulnerability has a high impact on availability (A:H). What does that mean for this vulnerability?** An attacker can send specially crafted packets which could affect availability of the service and result in Denial of Service (DoS).

CVE-2025-21206: Visual Studio Installer Elevation of Privilege Vulnerability

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** Exploitation of this vulnerability requires that a local user executes the Visual Studio installer