HomeMicrosoftCVE-2026-20811

CVE-2026-20811

HIGH
7.8CVSS
Published: 2026-01-13
Updated: 2026-01-14
AI Analysis

Description

Access of resource using incompatible type ('type confusion') in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

CVSS Metrics

Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
local
Complexity
low
Privileges
low
User Action
none
Scope
unchanged
Confidentiality
high
Integrity
high
Availability
high
Weaknesses
CWE-822CWE-843

Metadata

Primary Vendor
MICROSOFT
Published
1/13/2026
Last Modified
1/14/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : windows_11_23h2microsoft : windows_11_24h2microsoft : windows_11_25h2microsoft : windows_server_2022microsoft : windows_server_2022_23h2microsoft : windows_server_2025

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CVE-CVE-2026-20811 | HIGH Severity | CVEDatabase.com | CVEDatabase.com