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CVE-2014-3968

21
FAUCET Score

CVE-2014-3968 describes a denial-of-service vulnerability in Xen versions 4.2.x, 4.3.x, and 4.4.x, specifically within the HVMOP_inject_msi function, affecting products like openSUSE. An authenticated local guest HVM administrator can exploit this by sending numerous crafted requests, leading to a host crash due to excessive error logging. Rated with a CVSS score of 5.5, this vulnerability has an adjacent attack vector and low attack complexity, resulting in a complete loss of availability. 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
4.3.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*
4.3.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
4.2.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
4.2.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.5MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
5.1
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 81st percentile among its peer group of 314 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 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

Vendor Advisories (1)

redhatCVE-2014-3968Moderate

xen: Vulnerabilities in HVM MSI injection (XSA-96)

Jun 3, 2014

References

lists.fedoraproject.org / pipermail/package-announce/2014-June/134710.html
lists.fedoraproject.org / pipermail/package-announce/2014-June/134739.html
lists.opensuse.org / opensuse-security-announce/2014-10/msg00002.html
lists.opensuse.org / opensuse-security-announce/2014-10/msg00003.html
security.gentoo.org / glsa/201504-04
openwall.com / lists/oss-security/2014/06/04/13
securityfocus.com / bid/67794
securityfocus.com / bid/67824
securitytracker.com / id/1030322
xenbits.xen.org / xsa/advisory-96.html
PatchVendor Advisory