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CVE-2026-78457
HIGH
CVSS: 7.0
Published: 2026-09-08
Modified: 2026-09-11
Description
Use after free in Windows Security Health Service allows an authorized attacker to elevate privileges locally.
Affected Platforms
Microsoft Windows 11 24H2Microsoft Windows Server 2025Microsoft Windows Server 2022Microsoft Windows 11 25H2Microsoft Windows 11 26H1