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CVE-2019-10166· NVD / CVE Program· CNA redhat

It was discovered that libvirtd, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, would permit readonly clients to use the virDomainMana

It was discovered that libvirtd, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, would permit readonly clients to use the virDomainManagedSaveDefineXML() API, which would permit them to modify managed save state files. If a managed save had already been created by a privileged user, a local attacker could modify this file such that libvirtd would execute an arbitrary program when the domain was resumed.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Aug 2, 2019
Updated
Jun 16, 2026
EPSS
0.5% · 38th percentile
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Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CNA vs NVD score

NVD
7.8
CNA · redhat
7.8
agree

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
redhatlibvirt
redhatenterprise linux
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux server aus
redhatenterprise linux server eus
redhatenterprise linux server tus
redhatenterprise linux workstation
redhatvirtualization

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • redhat enterprise linux7.0
  • redhat enterprise linux8.0
  • redhat enterprise linux desktop6.0
  • redhat enterprise linux desktop7.0
  • redhat enterprise linux server6.0
  • redhat enterprise linux server7.0
  • redhat enterprise linux server aus7.6
  • redhat enterprise linux server eus7.6
  • redhat enterprise linux server tus7.6
  • redhat enterprise linux workstation6.0
  • redhat enterprise linux workstation7.0
  • redhat libvirt4.0.0 and later · before 4.10.1
  • redhat libvirt5.0.0 and later · before 5.4.1
  • redhat virtualization4.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • libvirt libvirt

    • 4.x.x before 4.10.1, 5.x.x before 5.4.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.10libvirtfrom 4.0.0 · before 5.5.0-r05.5.0-r0
Debian:12libvirtbefore 5.0.0-45.0.0-4
openSUSE:Leap 15.0libvirtbefore 4.0.0-lp150.7.18.24.0.0-lp150.7.18.2
openSUSE:Leap 15.1libvirtbefore 5.1.0-lp151.7.3.15.1.0-lp151.7.3.1
openSUSE:Tumbleweedlibvirtbefore 7.7.0-2.17.7.0-2.1
Red Hat:advanced_virtualization:8::el8hivexbefore 0:1.3.15-6.module+el8.0.0.z+3438+2851622e0:1.3.15-6.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8hivex-debuginfobefore 0:1.3.15-6.module+el8.0.0.z+3438+2851622e0:1.3.15-6.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8hivex-debugsourcebefore 0:1.3.15-6.module+el8.0.0.z+3438+2851622e0:1.3.15-6.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8hivex-develbefore 0:1.3.15-6.module+el8.0.0.z+3438+2851622e0:1.3.15-6.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfsbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-bash-completionbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-benchmarkingbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-benchmarking-debuginfobefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-debuginfobefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-debugsourcebefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-develbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-gfs2before 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-gobjectbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-gobject-debuginfobefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-gobject-develbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-inspect-iconsbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-javabefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-java-debuginfobefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e
Red Hat:advanced_virtualization:8::el8libguestfs-java-develbefore 1:1.40.2-1.module+el8.0.0.z+3438+2851622e1:1.40.2-1.module+el8.0.0.z+3438+2851622e

+96

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-5008libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string, which allows remote
    40Plan
  • CVE-2020-14339A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process.
    35Monitor
  • CVE-2019-10132A vulnerability was found in libvirt >= 4.1.0 in the virtlockd-admin.socket and virtlogd-admin.socket systemd units.
    35Monitor
  • CVE-2013-4401The virConnectDomainXMLToNative API function in libvirt 1.1.0 through 1.1.3 checks for the connect:read permission instead of the connect:wr
    35Monitor
  • CVE-2017-1000256libvirt version 2.3.0 and later is vulnerable to a bad default configuration of "verify-peer=no" passed to QEMU by libvirt resulting in a fa
    33Monitor
  • CVE-2019-10168The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:libvirt5.5.0-r0 · Alpine:v3.10Package registry (OSV)
debian:libvirt5.0.0-4 · Debian:12Package registry (OSV)
opensuse:libvirt4.0.0-lp150.7.18.2 · openSUSE:Leap 15.0Package registry (OSV)
red hat:libvirt0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-bash-completion0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-client0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-config-network0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-config-nwfilter0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-driver-interface0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-driver-lxc0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-driver-network0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-driver-nodedev0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-driver-nwfilter0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:libvirt-daemon-driver-qemu0:4.5.0-10.el7_6.12 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:libvirt4.0.0-8.15.2 · SUSE:Linux Enterprise Desktop 12 SP4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-284 · Improper Access Control

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records