EUVD-2026-29586
GHSA-5crp-h3g2-hwww
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows Win32K ICOMP component affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025 via a use-after-free memory corruption flaw. Low-privileged authenticated local attackers can exploit this to gain SYSTEM-level privileges with low attack complexity and no user interaction required. …
Sign in for full analysis, threat intelligence, and remediation guidance.
RemediationAI
Within 24 hours: Inventory all Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025 systems in your environment and verify current patch levels via Microsoft Update or WSUS. Within 7 days: Deploy the latest Microsoft security updates addressing CVE-2026-33840 to all affected systems, prioritizing servers and high-value workstations; validate patch installation via Windows Update History. …
Sign in for detailed remediation steps.
More from same product – last 7 days
Remote code execution in Microsoft Azure Orbital Spatio allows unauthenticated network attackers to upload dangerous fil
Unsafe deserialization in Microsoft Planetary Computer Pro (Geocatalog) lets a remote unauthenticated attacker craft mal
Remote code execution in Microsoft Power Pages allows unauthenticated network attackers to inject and execute operating-
Privilege elevation in Microsoft Azure Resource Manager (ARM) allows remote unauthenticated attackers to bypass authenti
Privilege escalation in Microsoft Entra ID enables remote unauthenticated attackers to bypass origin validation and gain
Share
External POC / Exploit Code
Leaving vuln.today