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Servers and applications

CVE-2012-5634

Xen 4.2.x, 4.1.x, and 4.0, when using Intel VT-d for PCI passthrough, does not properly configure VT-d when supporting a device that is behind a legacy PCI Bridge, which allows local guests to cause a denial of service to other guests by injecting an interrupt.

Severity
Medium 6.1
Published
14 Feb 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.7% in the next 30 daysHigher than 54% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-16
Attack
From the same local network · No login needed
Attacker can
Take it down
CVSS vector
AV:A/AC:L/Au:N/C:N/I:N/A:C
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Version 4.2.1
  • Version 4.2.0
  • Version 4.1.4
  • Version 4.1.3
All 8 release lines
  • Version 4.0.0
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3
  • Version 4.1.4
  • Version 4.2.0
  • Version 4.2.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-5634
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-5634