CVE-2020-35506: Qemu

Medium severity, CVSS 6.7. EPSS: 0.4% chance of exploitation in the next 30 days.

A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.

Affected products

• Qemu Qemu: before 6.0.0 (fixed in 6.0.0)

Published 2021-05-28. Last modified 2026-06-17.