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CVE-2012-5634

21
FAUCET Score

CVE-2012-5634 describes a denial-of-service vulnerability in Xen versions 4.0, 4.1.x, and 4.2.x when using Intel VT-d for PCI passthrough with devices behind a legacy PCI Bridge. The flaw allows a local guest to inject an interrupt, disrupting other guests. With a CVSS score of 6.1, this vulnerability is of medium severity, requiring adjacent network access and low attack complexity to achieve a complete denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*
4.1.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*
4.1.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*
4.1.3CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.1MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
6.5
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.0%
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 78th percentile among its peer group of 1,802 CVEs.

Social Chatter

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

gogspatch availablevia llm_extracted

Vendor Advisories (2)

redhatCVE-2012-5634Moderate

kernel: xen: VT-d interrupt remapping source validation flaw

Jan 8, 2013
gogsllm-gogs-a24b8f07e622a7f9

VT-d interrupt remapping source validation flaw

Jan 8, 2013

References

lists.opensuse.org / opensuse-security-announce/2014-03/msg00021.html
lists.opensuse.org / opensuse-updates/2013-04/msg00051.html
lists.opensuse.org / opensuse-updates/2013-04/msg00052.html
lists.opensuse.org / opensuse-updates/2013-06/msg00049.html
secunia.com / advisories/55082
security.gentoo.org / glsa/glsa-201309-24.xml
debian.org / security/2013/dsa-2636
openwall.com / lists/oss-security/2013/01/09/5