What’s Vulnerable › Vulnerabilities

CVE-2021-3559

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-24 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• NetApp ONTAP Select Deploy administration utility: all versions
• libvirt: from 6.10.0 before 7.0.0 — fixed in 7.0.0

How to fix

Upgrade to a fixed version: libvirt 7.0.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1962306
• https://security.netapp.com/advisory/ntap-20210706-0006/
• https://bugzilla.redhat.com/show_bug.cgi?id=1962306
• https://security.netapp.com/advisory/ntap-20210706-0006/

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