CVE-2026-3842: Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write
Overview
- Severity
- High (CVSS 7.8)
- CVSS Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Jul
- Released
- 2026-07-19
- EPSS Score
- 0.12% (percentile: 2.0%)
Affected Products (1)
Open Source Software
- azl3 qemu 9.1.0-10 on Azure Linux 3.0
Revision History
- 2026-07-19: Information published.