Dashboard / CVE-2026-83766

CVE-2026-83766

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 28/100
Published: 2026-10-13 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent No Interaction Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: High
PR: High
UI: None
S: Unchanged
C: None
I: High
A: None

Description

Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent network.

Weakness Classification (1)

Affected Software (34)

VendorProductVersion
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1607 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 1809 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7807
Microsoft Windows 10 Version 21H2 10.0.19044.0 < 10.0.19044.7807
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7807
Microsoft Windows 10 Version 22H2 10.0.19045.0 < 10.0.19045.7807
Microsoft Windows 11 Version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 Version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.9711
Microsoft Windows 11 Version 24H2 10.0.26100.0 < 10.0.26100.9711
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.9711
Microsoft Windows 11 Version 25H2 10.0.26200.0 < 10.0.26200.9711
Microsoft Windows 11 Version 26H2 10.0.26300.0 < 10.0.26300.9711
Microsoft Windows 11 Version 26H2 10.0.26300.0 < 10.0.26300.9711
Microsoft Windows 11 version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 version 23H2 10.0.22631.0 < 10.0.22631.7652
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.3231
Microsoft Windows 11 version 26H1 10.0.28000.0 < 10.0.28000.3231
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9612
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9376
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5761
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5761
Showing 30 of 34 entries

References & Advisories (1)

Bug Bounty Relevance

28 / 100
✓ No user interaction

CVSS Score

4.2 / 10.0 v3.1
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.41%
Raw Score 0.004070
Percentile 35.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00407
2026-10-28
0.00407

Intelligence Sources

mitre ref →

External Links