CVE-2026-20825 — Improper Access Control in Microsoft Windows 10 Version 1809

CWE-284 — Improper Access Control5 documents5 sources
Severity
4.4MEDIUMNVD
EPSS
0.0%
top 87.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
17
Microsoft Windows 10 Version 1809Microsoft Windows 10 Version 21h2Microsoft Windows 10 Version 22h2+14 more
Timeline
PublishedJan 13

Description

Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NExploitability: 0.8 | Impact: 3.6

Affected Packages17 packages

▶NVDmicrosoft/windows< 10.0.17763.8276+3
▶NVDmicrosoft/windows_10_1809< 10.0.17763.8276
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6809
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.6809
▶NVDmicrosoft/windows_11_23h2< 10.0.22631.6491

🔴Vulnerability Details

2
GHSA
GHSA-6gvp-867f-7hcj: Improper access control in Windows Hyper-V allows an authorized attacker to disclose information locally↗2026-01-13
▶
CVEList
Windows Hyper-V Information Disclosure Vulnerability↗2026-01-13
▶

📋Vendor Advisories

1
Microsoft
Windows Hyper-V Information Disclosure Vulnerability↗2026-01-13
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20825 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20825 — Improper Access Control in Microsoft | cvebase