CVE-2021-3559

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-119

Affected software

No affected versions have been published.

Timeline

Published
May 24, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-3559: Medium severity, CVSS 6.5 | Vulnix