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Known vulnerabilities in Microsoft Windows Server 2016 (Server Core installation)

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CVE Summary Score Published
CVE-2026-83659 Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized… 7.8 High Oct 13, 2026
CVE-2026-83664 Access of resource using incompatible type ('type confusion') in Windows Portable Device File System Driver allows an… 5.5 Medium Oct 13, 2026
CVE-2026-83573 Integer overflow or wraparound in Windows Kernel Mode Driver allows an unauthorized attacker to elevate privileges… 6.8 Medium Oct 13, 2026
CVE-2026-83574 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-83585 Use of externally-controlled format string in Windows NTFS allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83587 Untrusted pointer dereference in Windows Core Messaging allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83579 Heap-based buffer overflow in Windows Smart Card allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83567 Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83588 Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83582 Use after free in Windows Graphics Kernel allows an authorized attacker to disclose information locally 4.7 Medium Oct 13, 2026
CVE-2026-83570 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83513 Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate… 7.8 High Oct 13, 2026
CVE-2026-83522 Reliance on untrusted inputs in a security decision in Windows IKE Extension allows an unauthorized attacker to… 8.1 High Oct 13, 2026
CVE-2026-83514 Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges… 7.8 High Oct 13, 2026
CVE-2026-83564 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-83565 Buffer over-read in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information locally 5.5 Medium Oct 13, 2026
CVE-2026-83517 Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over… 9.8 Critical Oct 13, 2026
CVE-2026-83519 Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-83511 Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform… 7.4 High Oct 13, 2026
CVE-2026-83506 Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83508 Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-83509 Untrusted search path in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-69635 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges with a physical… 6.6 Medium Oct 13, 2026
CVE-2026-69471 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-69326 Heap-based buffer overflow in Graphic Fonts allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026

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