CVE-2020-35506

6.7 mediumEPSS 0.4%

Medium (6.7) in qemu qemu. 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.

Severity

CVSS 3.1

6.7 medium

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2021-05-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

qemu:qemu

References

http://www.openwall.com/lists/oss-security/2021/04/16/3
https://bugzilla.redhat.com/show_bug.cgi?id=1909996
https://security.gentoo.org/glsa/202208-27
https://security.netapp.com/advisory/ntap-20210713-0006/
https://www.openwall.com/lists/oss-security/2021/04/16/3

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