Threat Intelligence / CVE / CVE-2026-21519
CVE-2026-21519
CISA KEVAccess of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVSS v3 vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
CWE-843
Threats tracking this CVE
- February 2026 Patch Tuesday: Six Zero-Days Among 59 CVEs — CRITICAL
- February 2026 Patch Tuesday: Six Zero-Days Among 59 CVEs — CrowdStrike-Discovered RDP EoP Exploited Since December 2025 — CRITICAL
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21519
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21519
Full detection coverage & IOCs for threats exploiting CVE-2026-21519 are available via the Threadlinqs MCP server (Purple tier). View plans →