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CVE-2010-2239

15
FAUCET Score

CVE-2010-2239 describes a vulnerability in Red Hat libvirt, specifically versions 0.6.0 through 0.8.2, where the creation of new virtual machine images fails to properly set the user-defined backing-store format. This oversight allows authenticated guest OS users to potentially read arbitrary files on the host operating system through unspecified vectors. The vulnerability has a CVSS score of 4.4 (AV:L/AC:M/Au:S/C:C/I:N/A:N), indicating a low attack complexity requiring local access and user authentication, with a high impact on confidentiality. While it allows for arbitrary file reading, it does not directly impact integrity or availability. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. The CVE has garnered minimal community discussion and media coverage, suggesting it is not a widely recognized or actively targeted threat.

Impacted Technologies

VendorProductVersion(s)CPE
0.6.0CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.6.0:*:*:*:*:*:*:*
0.6.1CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.6.1:*:*:*:*:*:*:*
0.6.2CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.6.2:*:*:*:*:*:*:*
0.6.3CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.6.3:*:*:*:*:*:*:*
0.6.4CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.4MEDIUM

AV:L/AC:M/Au:S/C:C/I:N/A:N

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
2.7
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 73rd percentile among its peer group of 1,296 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libvirt-0:0.6.3-33.el5_5.3
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libvirt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.5Fixed in: libvirt

Vendor Advisories (1)

redhatCVE-2010-2239Moderate

libvirt: not setting user defined backing store format when creating new image

Jul 12, 2010

References

libvirt.org / news.html
Vendor Advisory
lists.fedoraproject.org / pipermail/package-announce/2010-July/044520.html
lists.fedoraproject.org / pipermail/package-announce/2010-July/044579.html
lists.opensuse.org / opensuse-security-announce/2010-09/msg00006.html
bugzilla.redhat.com / show_bug.cgi
ubuntu.com / usn/usn-1008-1
ubuntu.com / usn/usn-1008-2
ubuntu.com / usn/usn-1008-3
redhat.com / support/errata/RHSA-2010-0615.html
vupen.com / english/advisories/2010/2062
vupen.com / english/advisories/2010/2763