Known vulnerabilities in Microsoft Windows Server 2025 (Server Core installation)
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-83930 | Use after free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83931 | Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83924 | Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83933 | Improper link resolution before file access ('link following') in Windows Update Orchestrator Service allows an… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83925 | Use of uninitialized resource in Windows Kernel allows an authorized attacker to disclose information locally | 4.7 Medium | Oct 13, 2026 |
| CVE-2026-83934 | Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-83935 | Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a network | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-85874 | Use after free in Windows Message Queuing Queue Manager allows an authorized attacker to execute code locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83910 | Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-83913 | Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83923 | Relative path traversal in OpenSSH for Windows allows an unauthorized attacker to execute code over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-83915 | Use after free in Windows Diagnostic Policy Service allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83918 | Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-85908 | Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-85909 | Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-85910 | Buffer over-read in Windows StateRepository API allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-85911 | Use after free in Windows StateRepository API allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-85912 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clipboard User… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83904 | Out-of-bounds read in HID Parser Library allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83905 | Exposure of sensitive system information to an unauthorized control sphere in Windows Shell allows an authorized… | 4.7 Medium | Oct 13, 2026 |
| CVE-2026-83908 | Release of invalid pointer or reference in RPC Runtime allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-85902 | Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-85903 | Untrusted pointer dereference in DNS Server allows an unauthorized attacker to execute code over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-85905 | Heap-based buffer overflow in Windows UI Immersive Server allows an authorized attacker to elevate privileges locally | 8.8 High | Oct 13, 2026 |
| CVE-2026-85906 | Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
Other Microsoft products
Windows Server 2019 5745
Windows Server 2019 (Server Core installation) 5648
Windows 10 Version 1809 5349
Windows Server 2022 5112
Windows Server 2016 5051
Windows Server 2016 (Server Core installation) 4847
Windows 10 Version 21H2 4539
Windows 10 Version 1607 4535
Windows Server 2012 R2 4103
Windows 10 Version 22H2 4041
Windows Server 2012 R2 (Server Core installation) 3958
Windows Server 2012 3865