6.7
Medium
CVE-2026-20876 Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to…
Description
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.32230 | 10.0.26100.32230 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.7623 | 10.0.26200.7623 |
| Windows 11 version 22H3 10.0 | 10.0.22631.0 → < 10.0.22631.6491 | 10.0.22631.6491 |
| Windows 11 Version 23H2 10.0 | 10.0.22631.0 → < 10.0.22631.6491 | 10.0.22631.6491 |
| Windows Server 2022, 23H2 Edition (Server Core installation) 10.0 | 10.0.25398.0 → < 10.0.25398.2092 | 10.0.25398.2092 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.7623 | 10.0.26100.7623 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.32230 | 10.0.26100.32230 |
Other CVEs of Windows Server 2025 (Server Core installation)
The 3645 CVEs of Windows Server 2025 (Server Core installation) →
CVE-2026-108136
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally
7.8
High
CVE-2026-105016
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network
9.8
Critical
CVE-2026-108130
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to…
7.8
High
CVE-2026-108132
Double free in Windows Kerberos allows an authorized attacker to elevate privileges locally
7.0
High