Windows Server 2012 R2
Monthly
Denial of service in Microsoft Active Directory Federation Services (AD FS) lets a remote, unauthenticated attacker crash the service by triggering a stack-based buffer overflow (CWE-121) over the network. The flaw affects AD FS as shipped across a broad range of Windows client and server builds (Windows 10/11 and Windows Server 2012 through 2025). Microsoft - the reporting party - has released a patch; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Out-of-bounds read in Windows TCP/IP allows an authorized attacker to disclose information locally.
Remote code execution in Microsoft Active Directory Domain Services (AD DS) allows an unauthenticated network attacker to corrupt heap memory and run arbitrary code on affected domain controllers. The flaw (CVE-2026-49164, CVSS 8.1) spans a broad range of Windows client and server builds from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025, with full confidentiality, integrity, and availability impact. Microsoft has released a patch; there is no public exploit identified at time of analysis, and the high attack complexity (AC:H) tempers the practical exploitation likelihood.
Remote code execution in the Microsoft ODBC Driver for SQL Server (shipped across Windows 10, Windows 11, and Windows Server 2012 through 2025) stems from a heap-based buffer overflow that lets an attacker run arbitrary code over the network. The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) scores it 9.8 and marks it unauthenticated, though as a database driver flaw the realistic trigger is a client connecting to a malicious or compromised SQL Server endpoint. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet actively-exploited issue.
Remote code execution in the Microsoft Windows Bluetooth Port Driver (bthport) allows an adjacent, unauthenticated attacker to run arbitrary code by triggering a heap-based buffer overflow over Bluetooth radio range. The flaw spans a wide range of Windows client and server builds, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. There is no public exploit identified at time of analysis, EPSS is modest at 0.38% (30th percentile), and CISA SSVC currently marks exploitation as 'none', but the CVSS 8.8 rating and 'total' technical impact make this a high-priority patch.
Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.
Denial of service in Microsoft Active Directory Federation Services (AD FS) lets a remote, unauthenticated attacker crash the service by triggering a stack-based buffer overflow (CWE-121) over the network. The flaw affects AD FS as shipped across a broad range of Windows client and server builds (Windows 10/11 and Windows Server 2012 through 2025). Microsoft - the reporting party - has released a patch; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Out-of-bounds read in Windows TCP/IP allows an authorized attacker to disclose information locally.
Remote code execution in Microsoft Active Directory Domain Services (AD DS) allows an unauthenticated network attacker to corrupt heap memory and run arbitrary code on affected domain controllers. The flaw (CVE-2026-49164, CVSS 8.1) spans a broad range of Windows client and server builds from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025, with full confidentiality, integrity, and availability impact. Microsoft has released a patch; there is no public exploit identified at time of analysis, and the high attack complexity (AC:H) tempers the practical exploitation likelihood.
Remote code execution in the Microsoft ODBC Driver for SQL Server (shipped across Windows 10, Windows 11, and Windows Server 2012 through 2025) stems from a heap-based buffer overflow that lets an attacker run arbitrary code over the network. The supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) scores it 9.8 and marks it unauthenticated, though as a database driver flaw the realistic trigger is a client connecting to a malicious or compromised SQL Server endpoint. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet actively-exploited issue.
Remote code execution in the Microsoft Windows Bluetooth Port Driver (bthport) allows an adjacent, unauthenticated attacker to run arbitrary code by triggering a heap-based buffer overflow over Bluetooth radio range. The flaw spans a wide range of Windows client and server builds, from Windows 10 1607 and Server 2012 through Windows 11 26H1 and Server 2025. There is no public exploit identified at time of analysis, EPSS is modest at 0.38% (30th percentile), and CISA SSVC currently marks exploitation as 'none', but the CVSS 8.8 rating and 'total' technical impact make this a high-priority patch.
Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.