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EXPOSURES › CVE-2026-21519

CVE-2026-21519

HIGH ⌖ ON CISA KEV · EXPLOITED
DETAIL
SourceCISA-KEV · kev Published2026-02-10 Referencehttps://nvd.nist.gov/vuln/detail/CVE-2026-21519 ↗
⚡ RCE ⌖ EXPLOITED IN THE WILD SHAME 72/100 exploited-in-wildunpatched

Authorized attackers could elevate privileges on Windows systems due to a local type confusion vulnerability.

An unpatched vulnerability in Microsoft's Windows Desktop Windows Manager allows authorized attackers to escalate their privileges locally, posing a high security risk.

Shame score — Authorized attackers could exploit an unpatched vulnerability to elevate privileges locally, leading to a high security risk.

▸ RECOMMENDED ACTION  Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.

DESCRIPTION

Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges locally.

AFFECTED FEDRAMP PRODUCTS · 4
PRODUCTSTATUS
Azure Commercial Cloud
Microsoft
Authorized
Azure Government (includes Dynamics 365)
Microsoft
Authorized
Microsoft Office 365 GCC High
Microsoft
In Process
Office 365 Multi-Tenant & Supporting Services
Microsoft
Authorized