CVE-2020-27661: Qemu

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Affected products

• Qemu Qemu: up to and including 5.1.1

Published 2021-06-02. Last modified 2026-06-17.