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CVE-2019-10168

24
FAUCET Score

CVE-2019-10168 is a high-severity vulnerability affecting libvirt versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, impacting Red Hat Enterprise Linux and Red Hat Virtualization products. The flaw allows read-only clients to specify an arbitrary path for the "emulator" argument in virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() APIs. This enables libvirtd to execute a crafted executable with its own privileges, leading to potential compromise. With a CVSS score of 7.8 (High), this vulnerability has a local attack vector and low attack complexity, allowing an authenticated, low-privileged user to achieve high confidentiality, integrity, and availability impacts. Despite its severity, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage are also minimal, suggesting low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, < 4.10.1CPE matchmatch criteria
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*
>= 5.0.0, < 5.4.1CPE matchmatch criteria
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 82nd percentile among its peer group of 16,985 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libvirt-0:4.5.0-10.el7_6.12
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: virt:rhel-8000020190618154454.f8e95b4e
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8 Advanced VirtualizationFixed in: virt:8.0.0-8000020190620145550.f8e95b4e
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: redhat-release-virtualization-host-0:4.3.4-1.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: redhat-virtualization-host-0:4.3.4-20190620.3.el7_6
View patch
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2019-10168Important

libvirt: arbitrary command execution via virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU APIs

Jun 20, 2019

References

access.redhat.com / libvirt-privesc-vulnerabilities
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party AdvisoryVendor Advisory
security.gentoo.org / glsa/202003-18
Third Party Advisory