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CVE-2019-3879

26
FAUCET Score

CVE-2019-3879 describes a critical authorization bypass vulnerability in oVirt's REST API, affecting oVirt and Red Hat Virtualization products before version 4.3.2.1. A low-privileged user could exploit this flaw to delete disks attached to guest virtual machines due to improper permission validation for the RemoveDiskCommand. This vulnerability carries a CVSS score of 8.1 (HIGH), indicating a network-based attack with low attack complexity and high impact on integrity and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential for data loss makes this a significant concern.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3.2.1CPE matchmatch criteria
cpe:2.3:a:ovirt:ovirt:*:*:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:o:redhat:virtualization:4.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.83%
Probability of exploitation in next 30 days
EPSS Percentile
76.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0183 is in the 75th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.2Fixed in: org.ovirt.engine-root-0:4.2.8.7-1
View patch

Vendor Advisories (1)

redhatCVE-2019-3879Important

ovirt-engine: Missing permissions check in web ui allows a user with basic privileges to delete disks

Mar 25, 2019

References

access.redhat.com / errata/RHBA-2019:0802
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
securityfocus.com / bid/107561
Third Party AdvisoryVDB Entry