EUVD-2026-43946
GHSA-9m59-v99v-j834
Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Runtime affects Windows 11 (24H2, 25H2, 26H1) and Windows Server 2025, where a race condition (CWE-362) in the improperly synchronized handling of a shared resource lets an already-authenticated attacker win a timing window to gain higher privileges. Microsoft reported and patched the issue; there is no public exploit identified at time of analysis and it is not listed in CISA KEV. The CVSS 8.8 with scope-changed impact reflects that a low-privileged local user could reach full SYSTEM-level control of confidentiality, integrity, and availability.
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Same weakness CWE-362 – Race Condition
View allSame technique Information Disclosure
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External POC / Exploit Code
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