CVE-2026-45657
Windows Kernel Remote Code Execution vulnerability
MSRC advisory June 9, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-45657
- Affected products
- Windows Kernel Remote Code Execution · Microsoft Windows Kernel Remote Code Execution · Microsoft
What happened
Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.
What it means for your business
Windows Kernel Remote Code Execution vulnerability (CVE-2026-45657) was added to Microsoft’s security update guidance. Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Sources
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