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CVE-2025-59242: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

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

Microsoft Security Response Center
#vulnerability#windows#Windows Ancillary Function Driver for WinSock#Security Vulnerability
CVE-2025-59280: Windows SMB Client Tampering Vulnerability

Improper authentication in Windows SMB Server allows an authorized attacker to perform tampering over a network.

CVE-2025-59277: Windows Authentication Elevation of Privilege Vulnerability

**How could an attacker exploit this vulnerability?** To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. Additionally, an attacker could convince a local user to open a malicious file. The attacker would have to convince the user to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

CVE-2025-59259: Windows Local Session Manager (LSM) Denial of Service Vulnerability

Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.

CVE-2025-59258: Windows Active Directory Federation Services (ADFS) Information Disclosure Vulnerability

**What type of information could be disclosed by this vulnerability?** An attacker who successfully exploited this vulnerability could obtain Single Sign-On (SSO) cookies in ADFS logs.

CVE-2025-59282: Internet Information Services (IIS) Inbox COM Objects (Global Memory) Remote Code Execution Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Input Method Editor (IME) allows an authorized attacker to execute code locally.

CVE-2025-59281: Xbox Gaming Services Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in XBox Gaming Services allows an authorized attacker to elevate privileges locally.

CVE-2025-47979: Microsoft Failover Cluster Information Disclosure Vulnerability

Insertion of sensitive information into log file in Windows Failover Cluster allows an authorized attacker to disclose information locally.

CVE-2025-59250: JDBC Driver for SQL Server Spoofing Vulnerability

Improper input validation in JDBC Driver for SQL Server allows an unauthorized attacker to perform spoofing over a network.