AUGUST 4, 2026
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Case File

CVE-2021-3559

MEDIUM · CVSS 6.5 EPSS 1.03%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-05-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. See the original NVD description below for full technical details.

CVE
CVE-2021-3559
Severity
MEDIUM
CVSS
6.5
EPSS
1.03%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)