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Severity by source

Vendor (microsoft) PRIMARY
8.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 14, 2026 - 18:31 vuln.today
CVE Published
Jul 14, 2026 - 17:05 cve.org
HIGH 8.8

DescriptionCVE.org

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

AnalysisAI

Local privilege escalation in the Windows Kernel lets an already-authenticated attacker corrupt kernel memory via a use-after-free (CWE-416) and gain full control of the host. The CVSS 3.1 vector (AV:L/PR:L, scope-changed with C:H/I:H/A:H) reflects a low-privileged local user escalating to SYSTEM-level compromise across a broad range of Windows 10, Windows 11, and Windows Server builds. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but Microsoft has released a patch.

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EUVD-2026-43811 vulnerability details – vuln.today

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