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CVE-2010-2242

12
FAUCET Score

CVE-2010-2242 describes an access restriction bypass vulnerability in Red Hat libvirt versions 0.2.0 through 0.8.2. The flaw stems from improperly configured iptables rules that allow guest OS users to circumvent intended security controls by manipulating IP address and source-port values, demonstrated by NFS directory operations. This is a low-severity local vulnerability (CVSS 2.1) with low attack complexity, potentially leading to partial confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.2.0CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.2.0:*:*:*:*:*:*:*
0.2.1CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.2.1:*:*:*:*:*:*:*
0.2.2CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.2.2:*:*:*:*:*:*:*
0.2.3CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.2.3:*:*:*:*:*:*:*
0.3.0CPE matchmatch criteria
cpe:2.3:a:libvirt:libvirt:0.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 62nd percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

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

Vendor Advisories (1)

redhatCVE-2010-2242Low

libvirt: improperly mapped source privileged ports may allow for obtaining privileged resources on the host

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
bugs.launchpad.net / ubuntu/+source/libvirt/+bug/591943
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
Vendor Advisory
vupen.com / english/advisories/2010/2763