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CVE-2026-21519Desktop Window Manager Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

7.8 HIGHEPSS 2.56%⚡ Known Exploited (CISA KEV)NVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
7.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CISA required action

⚡ Known exploited · remediation due Mar 3, 2026

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Details

CVE ID
CVE-2026-21519
Status
Analyzed
Assigner (CNA)
microsoft
Published
Feb 10, 2026
Last modified
2026-08-19 16:25 UTC
Weaknesses
  • CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 10:15 UTC.