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Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Out-of-bounds read in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally.

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to elevate privileges locally.

Deadlock in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service over a network.

Improper authorization in DNS Server allows an authorized attacker to perform tampering locally.

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Buffer over-read in Windows Broadcast DVR User Service allows an authorized attacker to disclose information locally.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Providers allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows IKE Extension allows an unauthorized attacker to disclose information over a network.

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.

Insecure default variable initialization in Microsoft QUIC allows an unauthorized attacker to bypass a security feature over a network.

Untrusted pointer dereference in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.

Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.

Use after free in HID class driver allows an unauthorized attacker to elevate privileges with a physical attack.

An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it. To exploit the vulnerability, in a local attack scenario, an attacker could run a specially crafted application to elevate the attacker's privilege level. An attacker who successfully exploited this vulnerability could run processes in an elevated context. However, an attacker must first gain access to the local system with the ability to execute a malicious application in order to exploit this vulnerability. The security update addresses the vulnerability by changing how ndis.sys validates buffer length.