Skip to main content
MEDIUM

CVE-2020-10703

CVSS v3

6.5

MEDIUM

EPSS Score

2.4 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for libvirt.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • hivexAlmaLinux:8all versions · fixed in 1.3.18-20.module_el8.3.0+2048+e7a0a3eaand 6 other packages
  • libguestfs-winsupportAlmaLinux:8all versions · fixed in 8.2-1.module_el8.3.0+2048+e7a0a3ea
  • libiscsiAlmaLinux:8all versions · fixed in 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
  • libiscsi-develAlmaLinux:8all versions · fixed in 1.18.0-8.module_el8.5.0+2608+72063365and 1 other package
  • libvirtAlmaLinux:8all versions · fixed in 6.0.0-28.module_el8.3.0+2048+e7a0a3eaand 24 other packages
  • libvirt-dbusAlmaLinux:8all versions · fixed in 1.3.0-2.module_el8.5.0+2608+72063365
  • nbdfuseAlmaLinux:8all versions · fixed in 1.2.2-1.module_el8.5.0+2608+72063365and 1 other package
  • nbdkitAlmaLinux:8all versions · fixed in 1.16.2-4.module_el8.5.0+2608+72063365and 13 other packages

10 more package ranges on OSV.dev

Vendor advisories

  • CVE-2020-10703 Red Hat Product Security1,102 products fixed · 31 known affected

    libvirt: Potential denial of service via active pool without target path

    libvirt-admin (virt:8.1) as a component of Red Hat Enterprise Linux 8 Advanced Virtualization · libvirt-bash-completion (virt:8.1) as a component of Red Hat Enterprise Linux 8 Advanced Virtualization · libvirt-client (virt:8.1) as a component of Red Hat Enterprise Linux 8 Advanced Virtualization

  • RHSA-2020:4676 Red Hat Product Security838 products fixed

    Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

  • RHSA-2020:4000 Red Hat Product Security264 products fixed

    Red Hat Security Advisory: libvirt security and bug fix update

Full record on NVD

Description

A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.

Technical details

Published
2020-06-02

Frequently asked questions

What is CVE-2020-10703?

A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0, and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this flaw affects storage pools created without a target path such as network-based pools like gluster and RBD. Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon, resulting in a potential denial of service.

Is CVE-2020-10703 actively exploited?

Active exploitation of CVE-2020-10703 has not been confirmed. Its EPSS score was 2.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-10703?

CVE-2020-10703 has a CVSS v3 base score of 6.5 (MEDIUM severity).

Running libvirt? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database