CVE-2026-3842

Microsoft · Published July 20, 2026

7.8

CVSS v3.1

HIGH

Patch availableGet patch

Description

Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write. Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write

Affected Products

azl3 qemu 9.1.0-10 on Azure Linux 3.0

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H