Known vulnerabilities in Microsoft Windows Server 2025
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-83648 | Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a… | 6.5 Medium | Oct 13, 2026 |
| CVE-2026-83658 | Improper access control in Windows Error Reporting allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83649 | Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny… | 6.5 Medium | Oct 13, 2026 |
| CVE-2026-83510 | Time-of-check time-of-use (toctou) race condition in Windows Setup Files Cleanup allows an authorized attacker to… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83499 | Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83571 | Null pointer dereference in Windows Audio Service allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83521 | Out-of-bounds read in Windows IKE Extension allows an authorized attacker to disclose information over a network | 6.5 Medium | Oct 13, 2026 |
| CVE-2026-83575 | Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83515 | Use of uninitialized resource in RPC Runtime allows an unauthorized attacker to disclose information over a network | 6.5 Medium | Oct 13, 2026 |
| CVE-2026-83516 | Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny… | 7.5 High | Oct 13, 2026 |
| CVE-2026-83578 | Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a… | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-83641 | Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83580 | Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83635 | Out-of-bounds read in DNS Server allows an unauthorized attacker to deny service over a network | 7.5 High | Oct 13, 2026 |
| CVE-2026-83583 | Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83584 | Use after free in Windows Smart Card allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-69633 | Heap-based buffer overflow in Windows Update allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-69718 | Improper neutralization of special elements used in a command ('command injection') in Windows Update allows an… | 7.8 High | Oct 13, 2026 |
| CVE-2026-69882 | Untrusted search path in Windows Update allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-69650 | Improper verification of cryptographic signature in Windows Key Distribution Center allows an authorized attacker to… | 7.8 High | Oct 13, 2026 |
| CVE-2026-69743 | Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges… | 7.0 High | Oct 13, 2026 |
| CVE-2026-69673 | Improper link resolution before file access ('link following') in Windows Update allows an authorized attacker to… | 7.8 High | Oct 13, 2026 |
| CVE-2026-69830 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DHCP Server… | 8.1 High | Oct 13, 2026 |
| CVE-2026-81969 | Insufficient granularity of access control in Windows Server Update Service allows an authorized attacker to elevate… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83500 | Url redirection to untrusted site ('open redirect') in Windows BitLocker allows an unauthorized attacker to bypass a… | 6.1 Medium | 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