CVE-2020-10717

Name: CVE-2020-10717
Creator: NVD / NIST
Published: 2020-05-04T21:15:11.88+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2020-10717 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.40%

31.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qemu	Qemu	>= 5.0, < 5.0.1

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717Issue Tracking, Patch, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202011-09Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/05/04/1Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717Issue Tracking, Patch, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202011-09Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/05/04/1Mailing List, Patch, Third Party Advisory

Timeline

Published: May 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10717?

How severe is CVE-2020-10717?

CVE-2020-10717 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10717?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10717?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST