CVE-2016-6490: Qemu

Medium severity, CVSS 4.4. EPSS: 0.4% chance of exploitation in the next 30 days.

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the descriptor buffer.

Affected products

• Qemu Qemu: up to and including 2.6.2; version 2.7.0 only

Published 2016-12-10. Last modified 2026-06-17.