HomeMicrosoftCVE-2026-21508

CVE-2026-21508

HIGH
7.0CVSS
Published: 2026-02-10
Updated: 2026-02-12
AI Analysis

Description

Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally.

CVSS Metrics

Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
local
Complexity
high
Privileges
low
User Action
none
Scope
unchanged
Confidentiality
high
Integrity
high
Availability
high
Weaknesses
CWE-287CWE-426

Metadata

Primary Vendor
MICROSOFT
Published
2/10/2026
Last Modified
2/12/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : windows_10_1607microsoft : windows_10_1607microsoft : windows_10_1809microsoft : windows_10_1809microsoft : windows_10_21h2microsoft : windows_10_21h2microsoft : windows_10_21h2microsoft : windows_10_22h2microsoft : windows_10_22h2microsoft : windows_10_22h2microsoft : windows_11_23h2microsoft : windows_11_23h2microsoft : windows_11_24h2microsoft : windows_11_24h2microsoft : windows_11_25h2microsoft : windows_11_25h2microsoft : windows_server_2012microsoft : windows_server_2012microsoft : windows_server_2016microsoft : windows_server_2019microsoft : windows_server_2022microsoft : windows_server_2022_23h2microsoft : windows_server_2025

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