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Fencer Vulns
critical 9.9

CVE-2020-14316 json

Privilege Escalation in kubevirt

published 2020-07-29 6 y ago modified 2026-06-17 4 mo ago also GHSA-828r-r2c8-rfw3 , GO-2024-2756 , EUVD-2024-1148

cvss
9.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

A flaw was found in kubevirt 0.29 and earlier. Virtual Machine Instances (VMIs) can be used to gain access to the host's filesystem. Successful exploitation allows an attacker to assume the privileges of the VM process on the host system. In worst-case scenarios an attacker can read and modify any file on the system where the VMI is running. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Patch / fix

  • go kubevirt.io/kubevirt 0.30.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-14316 updated cvss 9.9

kubevirt: VMIs can be used to access host files

  • Red Hat OpenShift Virtualization 1 virt-launcher
    affected: workaround, no fix planned “This flaw can be partially or completely mitigated by leveraging existing mechanisms to restrict the VMI process such as running as non-root and using SELinux and sVirt whenever possible.”
  • Red Hat CNV 2.4 for RHEL 8 container-native-virtualization/kubevirt-cpu-node-labeller v2.4.0-19, container-native-virtualization/vm-import-controller-rhel8 v2.4.0-21, container-native-virtualization/kubevirt-kvm-info-nfd-plugin v2.4.0-18, container-native-virtualization/kubevirt-cpu-model-nfd-plugin v2.4.0-17
    fixed: vendor fix “This flaw can be partially or completely mitigated by leveraging existing mechanisms to restrict the VMI process such as running as non-root and using SELinux and sVirt whenever possible.” RHSA-2020:3194

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.58% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go kubevirt.io/kubevirt
<0.30.0
0.30.0

Affected products

  • n/a kubevirt

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.