Medium severity4.4NVD Advisory· Published Jan 13, 2026· Updated Jul 30, 2026
CVE-2026-20825
CVE-2026-20825
Description
Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally.
Affected products
24- Microsoft/Windows Server 2019 (Server Core installation)v5Range: 10.0.17763.0
- Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)v5Range: 10.0.25398.0
- Microsoft/Windows Server 2025 (Server Core installation)v5Range: 10.0.26100.0
10.0.17763.0+ 1 more
- (no CPE)range: 10.0.17763.0
- cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*range: <10.0.17763.8276
10.0.22631.0+ 1 more
- (no CPE)range: 10.0.22631.0
- cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*range: <10.0.22631.6491
10.0.26100.0+ 1 more
- (no CPE)range: 10.0.26100.0
- cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*range: <10.0.26100.7623
10.0.26200.0+ 1 more
- (no CPE)range: 10.0.26200.0
- cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*range: <10.0.26200.7623
10.0.17763.0+ 1 more
- (no CPE)range: 10.0.17763.0
- cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*range: <10.0.17763.8276
10.0.26100.0+ 1 more
- (no CPE)range: 10.0.26100.0
- cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*range: <10.0.26100.32230
10.0.20348.0+ 1 more
- (no CPE)range: 10.0.20348.0
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*range: <10.0.20348.4648
10.0.19044.0+ 3 more
- (no CPE)range: 10.0.19044.0
- (no CPE)range: 10.0.19045.0
- cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*range: <10.0.19044.6809
- cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*range: <10.0.19045.6809
- cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*Range: <10.0.25398.2092
- Range: 10.0.22631.0
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20825nvdVendor Advisory
News mentions
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