CVE-2017-12809: Debian Linux

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

QEMU (aka Quick Emulator), when built with the IDE disk and CD/DVD-ROM Emulator support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by flushing an empty CDROM device drive.

Affected products

• Debian Debian Linux: version 9.0 only
• Qemu Qemu: up to and including 2.9.1; version 2.10.0 only

Published 2017-08-23. Last modified 2026-06-17.